diff --git a/.coveragerc b/.coveragerc
index 9075ae653..08f00ace8 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -8,7 +8,7 @@ omit =
         *receb1*
         *recem*
         *recet*
-        *recex1*
+        *formatos*
         *rg3685*
         *setup_win*
         *sired*
diff --git a/conf/rece.ini b/conf/rece.ini
index c2df91123..e0405d031 100644
--- a/conf/rece.ini
+++ b/conf/rece.ini
@@ -42,6 +42,12 @@ ENTRADA=entrada.txt
 SALIDA=salida.txt
 ##URL=https://servicios1.afip.gov.ar/wsfe/service.asmx
 
+[WSFEXv1]
+CUIT=20267565393
+ENTRADA=entrada.txt
+SALIDA=salida.txt
+##URL=https://servicios1.afip.gov.ar/wsfe/service.asmx
+
 [WSCT]
 CUIT=20267565393
 ENTRADA=entrada.txt
diff --git a/formatos/formato_dbf.py b/formatos/formato_dbf.py
index 652d7898a..fee231482 100644
--- a/formatos/formato_dbf.py
+++ b/formatos/formato_dbf.py
@@ -40,7 +40,7 @@
 
 # definición del formato del archivo de intercambio:
 
-from formato_txt import (
+from .formato_txt import (
     A,
     N,
     I,
diff --git a/recex1.py b/recex1.py
index 8dc6af060..ba95958f7 100644
--- a/recex1.py
+++ b/recex1.py
@@ -203,7 +203,7 @@ def autorizar(ws, entrada, salida):
             print("DIF:", detalle["qty"] * detalle["precio"] - detalle["importe"])
 
         print("id:", encabezado["id"])
-    if not DEBUG or not sys.stdout.isatty() or input("Facturar?") == "S":
+    if not DEBUG or not sys.stdout.isatty() :
         ws.LanzarExcepcion = False
         cae = ws.Authorize(id=encabezado["id"])
         dic = ws.factura
@@ -277,7 +277,7 @@ def depurar_xml(client):
     f.write(client.xml_request)
     f.close()
     f = open("response-%s.xml" % fecha, "w")
-    f.write(client.xml_response)
+    f.write(client.xml_response.decode())
     f.close()
 
 
@@ -302,7 +302,7 @@ def main():
         print(" /dbf: lee y almacena la información en tablas DBF")
         print()
         print("Ver rece.ini para parámetros de configuración (URL, certificados, etc.)")
-        sys.exit(0)
+        return
 
     config = abrir_conf(CONFIG_FILE, DEBUG)
     cert = config.get("WSAA", "CERT")
@@ -380,10 +380,10 @@ def main():
             print("AppServerStatus", ws.AppServerStatus)
             print("DbServerStatus", ws.DbServerStatus)
             print("AuthServerStatus", ws.AuthServerStatus)
-            sys.exit(0)
+            return
 
         if "/formato" in sys.argv:
-            from .formatos.formato_dbf import definir_campos
+            from .formatos import formato_dbf 
 
             print("Formato:")
             for msg, formato in [
@@ -406,10 +406,10 @@ def main():
                 else:
                     filename = "%s.dbf" % msg.lower()[:8]
                     print("==== %s (%s) ====" % (msg, filename))
-                    claves, campos = definir_campos(formato)
+                    claves, campos = formato_dbf.definir_campos(formato)
                     for campo in campos:
                         print(" * Campo: %s" % (campo,))
-            sys.exit(0)
+            return
 
         # obteniendo el TA
         from .wsaa import WSAA
@@ -531,7 +531,7 @@ def main():
                 },
                 open(salida, "w"),
             )
-            sys.exit(0)
+            return
 
         if "/get" in sys.argv:
             print("Recuperar comprobante:")
@@ -568,7 +568,7 @@ def main():
                 },
                 open(salida, "w"),
             )
-            sys.exit(0)
+            return
 
         if "/ctz" in sys.argv:
             i = sys.argv.index("/ctz")
@@ -579,7 +579,7 @@ def main():
             ctz = ws.GetParamCtz(moneda_id)
             print("Cotizacion: ", ctz)
             print(ws.ErrMsg)
-            sys.exit(0)
+            return
 
         if "/monctz" in sys.argv:
             i = sys.argv.index("/monctz")
@@ -590,7 +590,7 @@ def main():
             ctz = ws.GetParamMonConCotizacion(fecha)
             print("\n".join(ctz))
             print(ws.ErrMsg)
-            sys.exit(0)
+            return
 
         f_entrada = f_salida = None
         try:
@@ -608,7 +608,7 @@ def main():
                 f_salida.close()
             if XML:
                 depurar_xml(ws.client)
-        sys.exit(0)
+        return
 
     except Exception as e:
         print(str(e).encode("ascii", "ignore"))
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_ayuda.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_ayuda.yaml
new file mode 100644
index 000000000..b96b59912
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_ayuda.yaml
@@ -0,0 +1,64 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:40.4021028-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:40 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf64a26f900950900750865d52c42385dbc95a43983acc515382474d61ae18b44e;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_ctz.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_ctz.yaml
new file mode 100644
index 000000000..6b22b1291
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_ctz.yaml
@@ -0,0 +1,122 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetPARAM_Ctz xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Mon_id>DOL</Mon_id></FEXGetPARAM_Ctz>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1372'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetPARAM_Ctz"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Header><FEHeaderInfo
+        xmlns="http://ar.gov.afip.dif.fexv1/"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:50.5584178-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetPARAM_CtzResponse
+        xmlns="http://ar.gov.afip.dif.fexv1/"><FEXGetPARAM_CtzResult><FEXResultGet><Mon_ctz>101.2110</Mon_ctz><Mon_fecha>20210730</Mon_fecha></FEXResultGet><FEXErr><ErrCode>0</ErrCode><ErrMsg>OK</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXGetPARAM_CtzResult></FEXGetPARAM_CtzResponse></soap:Body></soap:Envelope>
+    headers:
+      Cache-Control:
+      - no-cache
+      Content-Length:
+      - '792'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:50 GMT
+      Expect-CT:
+      - enforce
+      Expires:
+      - '-1'
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Pragma:
+      - no-cache
+      Set-Cookie:
+      - TS01983a04=01439f1ddfad39ffa4e6c70c81bf4f927c339353d20a995bb9bf48622472413a07bd41b5fe;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:51.0115457-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:51 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf10529dc4f351a4a62a34068169642647072507e9224fe9cd0fda17744fbab63c;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_dummy.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_dummy.yaml
new file mode 100644
index 000000000..71b8042b0
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_dummy.yaml
@@ -0,0 +1,118 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   \n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '269'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXDummy"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Header><FEHeaderInfo
+        xmlns="http://ar.gov.afip.dif.fexv1/"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:42.5896168-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXDummyResponse
+        xmlns="http://ar.gov.afip.dif.fexv1/"><FEXDummyResult><AppServer>OK</AppServer><DbServer>OK</DbServer><AuthServer>OK</AuthServer></FEXDummyResult></FEXDummyResponse></soap:Body></soap:Envelope>
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '626'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:42 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf4fc723fe7263fd190b19e9de46ee9cae8a944b7c09d0403aef5d64b15e84e7f0;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:43.0427447-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:43 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf3d0139d521942f88fa3004ff0fb240a60cfeb40afbc3bd8836ea80094f86638b;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_formato.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_formato.yaml
new file mode 100644
index 000000000..c782e510f
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_formato.yaml
@@ -0,0 +1,64 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>eUvSFAaZuBLaMdtAhCs5ooLrkDqKsoL64GZpdAvHmxv1Q/zPAP6Et3py/yc8JR1Xo7JsrSFUBsxlaKzUelWSSC24R0kCp+wG5QHiF7kw0SLCnRu3CraK7+LkNuHIyPc5uZmLpXO3EiCE1ZxSraKDMYc3lNdmpDpGlh0mMv1d0gw=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:23:25.0286571-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1000</ErrCode><ErrMsg>Usuario
+        no autorizado a realizar esta operacion. ValidacionDeToken: No validaron las
+        fechas del token GenTime, ExpTime, NowUTC: 1624322769 (6/22/2021 12:45:39
+        AM), 1624366029 (6/22/2021 12:47:09 PM), 8/2/2021 7:23:25 AM</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '915'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:23:25 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf01f5500da17cad179dd06df50a023ad6d599a50754a3148fde37f400d5fc2885;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_get.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_get.yaml
new file mode 100644
index 000000000..f5b01eda1
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_get.yaml
@@ -0,0 +1,119 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetCMP xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Cbte_tipo>21</Cbte_tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro></Cmp></FEXGetCMP>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1423'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetCMP"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:47.9959014-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetCMPResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXGetCMPResult><FEXResultGet><Id>0</Id><Cbte_tipo>0</Cbte_tipo><Punto_vta>0</Punto_vta><Cbte_nro>0</Cbte_nro><Tipo_expo>0</Tipo_expo><Dst_cmp>0</Dst_cmp><Cuit_pais_cliente>0</Cuit_pais_cliente><Moneda_ctz>0</Moneda_ctz><Imp_total>0</Imp_total><Idioma_cbte>0</Idioma_cbte></FEXResultGet><FEXErr><ErrCode>1020</ErrCode><ErrMsg>Comprobante
+        inexistente</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXGetCMPResult></FEXGetCMPResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '978'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:47 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf9acb767a80bed84268b126c025ecc172be8420ede52c5e4c504c003224053902;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:48.4334042-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:48 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf498ca19e6334a083c23f2d04068a470b6cd92137305d7f0647fac390d1cdc001;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_monctz.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_monctz.yaml
new file mode 100644
index 000000000..c2a8362fe
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_monctz.yaml
@@ -0,0 +1,123 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetPARAM_MON_CON_COTIZACION xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n
+      \   <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Fecha_CTZ>20210802</Fecha_CTZ></FEXGetPARAM_MON_CON_COTIZACION>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1413'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetPARAM_MON_CON_COTIZACION"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Header><FEHeaderInfo
+        xmlns="http://ar.gov.afip.dif.fexv1/"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:53.1209342-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetPARAM_MON_CON_COTIZACIONResponse
+        xmlns="http://ar.gov.afip.dif.fexv1/"><FEXGetPARAM_MON_CON_COTIZACIONResult><FEXResultGet><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>002</Mon_Id><Mon_ctz>2.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>007</Mon_Id><Mon_ctz>7.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>009</Mon_Id><Mon_ctz>9.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>010</Mon_Id><Mon_ctz>10.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>011</Mon_Id><Mon_ctz>11.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>012</Mon_Id><Mon_ctz>12.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>014</Mon_Id><Mon_ctz>14.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>015</Mon_Id><Mon_ctz>15.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>016</Mon_Id><Mon_ctz>16.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>018</Mon_Id><Mon_ctz>18.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>019</Mon_Id><Mon_ctz>19.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>021</Mon_Id><Mon_ctz>21.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>023</Mon_Id><Mon_ctz>23.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>024</Mon_Id><Mon_ctz>24.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>025</Mon_Id><Mon_ctz>25.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>026</Mon_Id><Mon_ctz>26.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>027</Mon_Id><Mon_ctz>27.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>028</Mon_Id><Mon_ctz>28.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>029</Mon_Id><Mon_ctz>29.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>030</Mon_Id><Mon_ctz>30.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>031</Mon_Id><Mon_ctz>31.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>032</Mon_Id><Mon_ctz>32.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>033</Mon_Id><Mon_ctz>33.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>034</Mon_Id><Mon_ctz>34.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>035</Mon_Id><Mon_ctz>35.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>036</Mon_Id><Mon_ctz>36.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>040</Mon_Id><Mon_ctz>40.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>041</Mon_Id><Mon_ctz>41.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>042</Mon_Id><Mon_ctz>42.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>043</Mon_Id><Mon_ctz>43.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>044</Mon_Id><Mon_ctz>44.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>045</Mon_Id><Mon_ctz>45.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizacion><ClsFEXResponse_Mon_CON_Cotizacion><Mon_Id>046</Mon_Id><Mon_ctz>46.2110</Mon_ctz><Fecha_ctz>7/30/2021</Fecha_ctz></ClsFEXResponse_Mon_CON_Cotizac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+    headers:
+      Cache-Control:
+      - no-cache
+      Content-Length:
+      - '8093'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:53 GMT
+      Expect-CT:
+      - enforce
+      Expires:
+      - '-1'
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Pragma:
+      - no-cache
+      Set-Cookie:
+      - TS01983a04=01439f1ddf9c3cf63f89a15381c25fdf0add2f730138c8fade6c813c73f0fb4cf81c892912;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:53.5740621-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:53 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf9aa83b01d36ef3c7104d94c242f91319433e2a9bf4a1287b90583280d0168cd9;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_prueba.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_prueba.yaml
new file mode 100644
index 000000000..610dd698f
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_prueba.yaml
@@ -0,0 +1,172 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetLast_CMP xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit><Pto_venta>7</Pto_venta><Cbte_Tipo>21</Cbte_Tipo></Auth></FEXGetLast_CMP>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1399'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetLast_CMP"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:09:01.056949-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetLast_CMPResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXGetLast_CMPResult><FEXResult_LastCMP><Cbte_nro>27</Cbte_nro><Cbte_fecha>20170907</Cbte_fecha></FEXResult_LastCMP><FEXErr><ErrCode>0</ErrCode><ErrMsg>OK</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXGetLast_CMPResult></FEXGetLast_CMPResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '797'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:09:01 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddfa7b80c09aa959060d65ad311eee9b0e4d5bf25a29893645e3bb77061449e1ca3;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetLast_ID xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9InllcyI/Pgo8c3NvIHZlcnNpb249IjIuMCI+CiAgICA8aWQgc3JjPSJDTj13c2FhaG9tbywgTz1BRklQLCBDPUFSLCBTRVJJQUxOVU1CRVI9Q1VJVCAzMzY5MzQ1MDIzOSIgZHN0PSJjbj13c2ZleCxvPWFmaXAsYz1hciIgdW5pcXVlX2lkPSIzNDYzNTI0MTU0IiBnZW5fdGltZT0iMTYyNzg4NzkzMyIgZXhwX3RpbWU9IjE2Mjc5MzExOTMiLz4KICAgIDxvcGVyYXRpb24gdHlwZT0ibG9naW4iIHZhbHVlPSJncmFudGVkIj4KICAgICAgICA8bG9naW4gZW50aXR5PSIzMzY5MzQ1MDIzOSIgc2VydmljZT0id3NmZXgiIHVpZD0iU0VSSUFMTlVNQkVSPUNVSVQgMjAyNjc1NjUzOTMsIENOPXJlaW5nYXJ0MjAyMSIgYXV0aG1ldGhvZD0iY21zIiByZWdtZXRob2Q9IjIyIj4KICAgICAgICAgICAgPHJlbGF0aW9ucz4KICAgICAgICAgICAgICAgIDxyZWxhdGlvbiBrZXk9IjIwMjY3NTY1MzkzIiByZWx0eXBlPSI0Ii8+CiAgICAgICAgICAgIDwvcmVsYXRpb25zPgogICAgICAgIDwvbG9naW4+CiAgICA8L29wZXJhdGlvbj4KPC9zc28+Cg==</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth></FEXGetLast_ID>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1348'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetLast_ID"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:09:01.4632016-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetLast_IDResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXGetLast_IDResult><FEXResultGet><Id>988888888888344</Id></FEXResultGet><FEXErr><ErrCode>0</ErrCode><ErrMsg>OK</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXGetLast_IDResult></FEXGetLast_IDResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '752'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:09:01 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddfc82ad92008878c6074982aaf8eca22ee55b77dc082256169ae3d1baa643393de;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:09:01.9007044-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:09:01 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddfd21c1ae5280a44c6ac6efd1ec52b98d5e333f259c2a808c948550177b627611b;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/cassettes/test_wsfexv1_recex1/test_main_ult.yaml b/tests/cassettes/test_wsfexv1_recex1/test_main_ult.yaml
new file mode 100644
index 000000000..c5bc6f0ab
--- /dev/null
+++ b/tests/cassettes/test_wsfexv1_recex1/test_main_ult.yaml
@@ -0,0 +1,118 @@
+interactions:
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXGetLast_CMP xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit><Pto_venta>7</Pto_venta><Cbte_Tipo>21</Cbte_Tipo></Auth></FEXGetLast_CMP>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '1399'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXGetLast_CMP"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:45.4021348-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXGetLast_CMPResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXGetLast_CMPResult><FEXResult_LastCMP><Cbte_nro>27</Cbte_nro><Cbte_fecha>20170907</Cbte_fecha></FEXResult_LastCMP><FEXErr><ErrCode>0</ErrCode><ErrMsg>OK</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXGetLast_CMPResult></FEXGetLast_CMPResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '798'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:45 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddfc695762df18bff95617eff149b6da1c8603995673c697471a23f2e5076ec5a08;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+- request:
+    body: "<?xml version=\"1.0\" encoding=\"UTF-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"
+      xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n<soap:Header/>\n<soap:Body>\n
+      \   <FEXAuthorize xmlns=\"http://ar.gov.afip.dif.fexv1/\">\n    <Auth><Token>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</Token><Sign>SZ1fyhMT8/62JmbcMZsvdnqAIcy9h2e86ymG5LLcRUzevrWbd9kktHaz89qgK7w0B2JrWfxBQ15s48TpI9sG/zdwIOFs6vOYo2rb/jsAz769kgfwvuMO5n9cnfjKVbqg4+Ur903NgcRocMN4GKo0Sn7G9CJADSgbgiOQCktg6v4=</Sign><Cuit>20267565393</Cuit></Auth><Cmp><Id>988888888888345</Id><Fecha_cbte>20210802</Fecha_cbte><Cbte_Tipo>21</Cbte_Tipo><Punto_vta>7</Punto_vta><Cbte_nro>28</Cbte_nro><Tipo_expo>1</Tipo_expo><Permiso_existente>S</Permiso_existente><Permisos><Permiso><Id_permiso>99999AAXX999999A</Id_permiso><Dst_merc>225</Dst_merc></Permiso></Permisos><Dst_cmp>203</Dst_cmp><Cliente>Joao
+      Da Silva</Cliente><Cuit_pais_cliente>0</Cuit_pais_cliente><Domicilio_cliente>Rua
+      76 km 34.5 Alagoas</Domicilio_cliente><Id_impositivo>PJ54482221-l</Id_impositivo><Moneda_Id>DOL</Moneda_Id><Moneda_ctz>19.8</Moneda_ctz><Obs_comerciales>Observaciones
+      comerciales</Obs_comerciales><Imp_total>250.0</Imp_total><Obs>Sin observaciones</Obs><Cmps_asoc><Cmp_asoc><Cbte_tipo>19</Cbte_tipo><Cbte_punto_vta>2</Cbte_punto_vta><Cbte_nro>1234</Cbte_nro><Cbte_cuit>20111111111</Cbte_cuit></Cmp_asoc></Cmps_asoc><Forma_pago>30
+      dias</Forma_pago><Incoterms>FOB</Incoterms><Incoterms_Ds>Flete a Bordo</Incoterms_Ds><Idioma_cbte>1</Idioma_cbte><Items><Item><Pro_codigo>PRO1</Pro_codigo><Pro_ds>Producto
+      Tipo 1 Exportacion MERCOSUR ISO 9001</Pro_ds><Pro_qty>2.0</Pro_qty><Pro_umed>1</Pro_umed><Pro_precio_uni>150.0</Pro_precio_uni><Pro_bonificacion>50.0</Pro_bonificacion><Pro_total_item>250.0</Pro_total_item></Item></Items><Fecha_pago></Fecha_pago></Cmp></FEXAuthorize>\n</soap:Body>\n</soap:Envelope>"
+    headers:
+      accept-encoding:
+      - gzip, deflate
+      content-length:
+      - '2619'
+      content-type:
+      - text/xml; charset="UTF-8"
+      soapaction:
+      - '"http://ar.gov.afip.dif.fexv1/FEXAuthorize"'
+      user-agent:
+      - Mozilla/5.0 (Windows NT 6.1; Win64; x64)
+    method: POST
+    uri: https://wswhomo.afip.gov.ar/wsfexv1/service.asmx
+  response:
+    body:
+      string: "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"
+        xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Header><FEHeaderInfo
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><ambiente>Homologacion - efa</ambiente><fecha>2021-08-02T04:15:45.8552627-03:00</fecha><id>2.1.0.0</id></FEHeaderInfo></soap:Header><soap:Body><FEXAuthorizeResponse
+        xmlns=\"http://ar.gov.afip.dif.fexv1/\"><FEXAuthorizeResult><FEXErr><ErrCode>1667</ErrCode><ErrMsg>El
+        tipo de cambio no podr\xE1 ser inferior al 20% ni superior en un 100% del
+        que suministra AFIP como orientativo de acuerdo a la cotizaci\xF3n oficial.
+        Ver Metodo FEXGetPARAM_Ctz.</ErrMsg></FEXErr><FEXEvents><EventCode>0</EventCode><EventMsg>Ok</EventMsg></FEXEvents></FEXAuthorizeResult></FEXAuthorizeResponse></soap:Body></soap:Envelope>\r\n"
+    headers:
+      Cache-Control:
+      - private, max-age=0
+      Content-Length:
+      - '872'
+      Content-Type:
+      - text/xml; charset=utf-8
+      Date:
+      - Mon, 02 Aug 2021 07:15:45 GMT
+      Expect-CT:
+      - enforce
+      MicrosoftOfficeWebServer:
+      - 5.0_Pub
+      Set-Cookie:
+      - TS01983a04=01439f1ddf33d10caebc8aa54948267fde91abdbbef7c4b9eef1e6604ba98f74431c8ff3c7;
+        Path=/
+      Strict-Transport-Security:
+      - nosniff
+      X-AspNet-Version:
+      - 2.0.50727
+      X-Content-Type-Options:
+      - nosniff
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Powered-By:
+      - ASP.NET
+      X-Xss-Protection:
+      - 1; mode=block
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/tests/test_wsfexv1_recex1.py b/tests/test_wsfexv1_recex1.py
new file mode 100644
index 000000000..35889cea5
--- /dev/null
+++ b/tests/test_wsfexv1_recex1.py
@@ -0,0 +1,85 @@
+#!/usr/bin/python
+# -*- coding: utf8 -*-
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 3, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+
+"""Test para recex1"""
+
+__author__ = "Mariano Reingart (reingart@gmail.com)"
+__copyright__ = "Copyright (C) 2010-2021 Mariano Reingart"
+__license__ = "LGPL-3.0-or-later"
+__version__ = "3.38c"
+
+import pytest
+import shutil
+import sys
+import time
+
+from pyafipws import wsfexv1
+from pyafipws import recex1
+from pyafipws.wsaa import WSAA
+
+HOMO = wsfexv1.HOMO
+CONFIG_FILE = "conf/rece.ini"
+
+# entrada.txt required for testing
+shutil.copy('tests/txt/entrada_recex1.txt','entrada.txt')
+
+pytestmark =[pytest.mark.vcr, pytest.mark.dontusefix, pytest.mark.freeze_time('2021-08-02')]
+
+
+def test_main_ayuda():
+    sys.argv = []
+    sys.argv.append('/ayuda')
+    sys.argv.append('/debug')
+    recex1.main()
+
+
+def test_main_prueba():
+    sys.argv = []
+    sys.argv.append('/prueba')
+    recex1.main()
+
+def test_main_dummy():
+    sys.argv = []
+    sys.argv.append('/dummy')
+    recex1.main()
+
+def test_main_formato():
+    sys.argv = []
+    sys.argv.append('/formato')
+    recex1.main()
+
+def test_main_ult():
+    sys.argv = []
+    sys.argv.append('/ult')
+    sys.argv.append('21')
+    sys.argv.append('7')
+    recex1.main()
+
+def test_main_get():
+    sys.argv = []
+    sys.argv.append('/get')
+    sys.argv.append('21')
+    sys.argv.append('7')
+    sys.argv.append('28')
+    recex1.main()
+
+def test_main_ctz():
+    sys.argv = []
+    sys.argv.append('/ctz')
+    sys.argv.append('DOL')
+    recex1.main()
+
+def test_main_monctz():
+    sys.argv = []
+    sys.argv.append('/monctz')
+    sys.argv.append('')
+    recex1.main()
\ No newline at end of file
diff --git a/tests/txt/entrada_recex1.txt b/tests/txt/entrada_recex1.txt
new file mode 100644
index 000000000..dcd0537e9
--- /dev/null
+++ b/tests/txt/entrada_recex1.txt
@@ -0,0 +1,4 @@
+020210802210007000000281S203Joao Da Silva                                                                                                                                                                                                      Rua 76 km 34.5 Alagoas                                                                                                                                                                                                                                                                                      PJ54482221-l                                      000000000025000DOL0019800000Observaciones comerciales                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     30 dias                                           FOBFlete a Bordo       1                                                                                                                                                                                                                                                                                                                          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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
+1PRO1                                              000002000000010001500000000000000025000000050000000Producto Tipo 1 Exportacion MERCOSUR ISO 9001                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
+299999AAXX999999A225
+301900020000123420111111111