diff --git a/backend/pkg/api/types/notifications.go b/backend/pkg/api/types/notifications.go
index 971af2ec1..ccdfa4824 100644
--- a/backend/pkg/api/types/notifications.go
+++ b/backend/pkg/api/types/notifications.go
@@ -31,12 +31,12 @@ type InternalGetUserNotificationsResponse ApiDataResponse[NotificationOverviewDa
 type NotificationDashboardsTableRow struct {
 	IsAccountDashboard bool     `json:"is_account_dashboard"` // if false it's a validator dashboard
 	ChainId            uint64   `json:"chain_id"`
-	Timestamp          int64    `json:"timestamp"`
+	Epoch              uint64   `json:"epoch"`
 	DashboardId        uint64   `json:"dashboard_id"`
+	GroupId            uint64   `json:"group_id"`
 	GroupName          string   `json:"group_name"`
-	NotificationId     uint64   `json:"notification_id"` // may be string? db schema is not defined afaik
 	EntityCount        uint64   `json:"entity_count"`
-	EventTypes         []string `json:"event_types" tstype:"('validator_online' | 'validator_offline' | 'group_online' | 'group_offline' | 'attestation_missed' | 'proposal_success' | 'proposal_missed' | 'proposal_upcoming' | 'max_collateral' | 'min_collateral' | 'sync' | 'withdrawal' | 'got_slashed' | 'has_slashed' | 'incoming_tx' | 'outgoing_tx' | 'transfer_erc20' | 'transfer_erc721' | 'transfer_erc1155')[]" faker:"oneof: validator_offline, group_offline, attestation_missed, proposal_success, proposal_missed, proposal_upcoming, max_collateral, min_collateral, sync, withdrawal, slashed_own, incoming_tx, outgoing_tx, transfer_erc20, transfer_erc721, transfer_erc1155"`
+	EventTypes         []string `json:"event_types" tstype:"('validator_online' | 'validator_offline' | 'group_online' | 'group_offline' | 'attestation_missed' | 'proposal_success' | 'proposal_missed' | 'proposal_upcoming' | 'max_collateral' | 'min_collateral' | 'sync' | 'withdrawal' | 'got_slashed' | 'has_slashed' | 'incoming_tx' | 'outgoing_tx' | 'transfer_erc20' | 'transfer_erc721' | 'transfer_erc1155')[]" faker:"slice_len=2, oneof: validator_offline, group_offline, attestation_missed, proposal_success, proposal_missed, proposal_upcoming, max_collateral, min_collateral, sync, withdrawal, slashed_own, incoming_tx, outgoing_tx, transfer_erc20, transfer_erc721, transfer_erc1155"`
 }
 
 type InternalGetUserNotificationDashboardsResponse ApiPagingResponse[NotificationDashboardsTableRow]
diff --git a/frontend/components/dashboard/table/DashboardTableRewards.vue b/frontend/components/dashboard/table/DashboardTableRewards.vue
index 92758a883..c60d63642 100644
--- a/frontend/components/dashboard/table/DashboardTableRewards.vue
+++ b/frontend/components/dashboard/table/DashboardTableRewards.vue
@@ -137,19 +137,6 @@ const findNextEpochDuties = (epoch: number) => {
 
   return list.join(', ')
 }
-
-const wrappedRewards = computed(() => {
-  if (!rewards.value) {
-    return
-  }
-  return {
-    data: rewards.value.data.map(d => ({
-      ...d,
-      identifier: `${d.epoch}-${d.group_id}`,
-    })),
-    paging: rewards.value.paging,
-  }
-})
 </script>
 
 <template>
@@ -168,7 +155,7 @@ const wrappedRewards = computed(() => {
       <template #table>
         <ClientOnly fallback-tag="span">
           <BcTable
-            :data="wrappedRewards"
+            :data="addIdentifier(rewards, 'epoch', 'group_id')"
             data-key="identifier"
             :expandable="true"
             class="rewards-table"
diff --git a/frontend/components/notifications/DashboardsTable.vue b/frontend/components/notifications/DashboardsTable.vue
index ef6ef6143..381b3874a 100644
--- a/frontend/components/notifications/DashboardsTable.vue
+++ b/frontend/components/notifications/DashboardsTable.vue
@@ -61,8 +61,8 @@ const { overview } = useNotificationsDashboardOverviewStore()
       <template #table>
         <ClientOnly fallback-tag="span">
           <BcTable
-            :data="notificationsDashboards"
-            data-key="notification_id"
+            :data="addIdentifier(notificationsDashboards, 'is_account_dashboard', 'dashboard_id', 'group_id', 'epoch')"
+            data-key="identifier"
             :expandable="!colsVisible.notifications"
             :cursor
             :page-size
@@ -89,7 +89,7 @@ const { overview } = useNotificationsDashboardOverviewStore()
               </template>
             </Column>
             <Column
-              field="timestamp"
+              field="epoch"
               sortable
               header-class="col-age"
               body-class="col-age"
@@ -99,8 +99,8 @@ const { overview } = useNotificationsDashboardOverviewStore()
               </template>
               <template #body="slotProps">
                 <BcFormatTimePassed
-                  :value="slotProps.data.timestamp"
-                  type="go-timestamp"
+                  :value="slotProps.data.epoch"
+                  type="epoch"
                 />
               </template>
             </Column>
diff --git a/frontend/types/api/notifications.ts b/frontend/types/api/notifications.ts
index 742d60a07..08c039dea 100644
--- a/frontend/types/api/notifications.ts
+++ b/frontend/types/api/notifications.ts
@@ -37,10 +37,10 @@ export type InternalGetUserNotificationsResponse = ApiDataResponse<NotificationO
 export interface NotificationDashboardsTableRow {
   is_account_dashboard: boolean; // if false it's a validator dashboard
   chain_id: number /* uint64 */;
-  timestamp: number /* int64 */;
+  epoch: number /* uint64 */;
   dashboard_id: number /* uint64 */;
+  group_id: number /* uint64 */;
   group_name: string;
-  notification_id: number /* uint64 */; // may be string? db schema is not defined afaik
   entity_count: number /* uint64 */;
   event_types: ('validator_online' | 'validator_offline' | 'group_online' | 'group_offline' | 'attestation_missed' | 'proposal_success' | 'proposal_missed' | 'proposal_upcoming' | 'max_collateral' | 'min_collateral' | 'sync' | 'withdrawal' | 'got_slashed' | 'has_slashed' | 'incoming_tx' | 'outgoing_tx' | 'transfer_erc20' | 'transfer_erc721' | 'transfer_erc1155')[];
 }
diff --git a/frontend/utils/addIdentifier.ts b/frontend/utils/addIdentifier.ts
new file mode 100644
index 000000000..4e2628bdc
--- /dev/null
+++ b/frontend/utils/addIdentifier.ts
@@ -0,0 +1,18 @@
+import type { ApiPagingResponse } from '~/types/api/common'
+/**
+ * Sometimes the api does not provide a `unique id` for objects in an array.
+ * But in `frontend` there are `components` that need  to differentiate between the items.
+ * So an identifier for each item is constructed out of a combination of the `object`.
+ */
+export function addIdentifier<T>(response: ApiPagingResponse<T> | undefined, ...keys: (keyof T)[]) {
+  if (!response) {
+    return
+  }
+  return {
+    data: response.data.map(row => ({
+      ...row,
+      identifier: keys.map(key => row[key]).join('-'),
+    })),
+    paging: response.paging,
+  }
+}