diff --git a/backend/src/util/klicktipp.ts b/backend/src/util/klicktipp.ts
index 4d90be134..4ee5455a8 100644
--- a/backend/src/util/klicktipp.ts
+++ b/backend/src/util/klicktipp.ts
@@ -1,8 +1,12 @@
+ // eslint-disable @typescript-eslint/no-explicit-any
 import { User } from '@entity/User'
 
-import { getKlickTippUser } from '@/apis/KlicktippController'
+import { getKlickTippUser, addFieldsToSubscriber } from '@/apis/KlicktippController'
 import LogError from '@/server/LogError'
 import connection from '@/typeorm/connection'
+import { lastDateTimeEvents } from '@/graphql/resolver/util/eventList'
+import { EventType } from '@/event/EventType'
+import { Event as DbEvent } from '@/event/Event'
 
 export async function retrieveNotRegisteredEmails(): Promise<string[]> {
   const con = await connection()
@@ -27,4 +31,35 @@ export async function retrieveNotRegisteredEmails(): Promise<string[]> {
   return notRegisteredUser
 }
 
-void retrieveNotRegisteredEmails()
+function klickTippSendFieldToUser(events: any, value: string): void {
+  for(const event of events) {
+    addFieldsToSubscriber(event.email, { [value]: event.value })
+  }
+}
+
+export async function exportEventDataToKlickTipp(): Promise<void> {
+  const connectionInstance = await connection()
+  if (!connectionInstance) {
+    throw new LogError('No connection to database')
+  }
+
+  const lastLoginEvents = await lastDateTimeEvents(EventType.USER_LOGIN)
+  klickTippSendFieldToUser(lastLoginEvents, 'GDD last login')
+
+  const registeredEvents = await lastDateTimeEvents(EventType.USER_ACTIVATE_ACCOUNT)
+  klickTippSendFieldToUser(registeredEvents, 'GDD date of registration')
+
+  const receiveTransactionEvents = await lastDateTimeEvents(EventType.TRANSACTION_RECEIVE)
+  klickTippSendFieldToUser(receiveTransactionEvents, 'GDD last received')
+  
+  const contributionCreateEvents = await lastDateTimeEvents(EventType.TRANSACTION_SEND)
+  klickTippSendFieldToUser(contributionCreateEvents, 'GDD last sent')
+  
+  const linkRedeemedEvents = await lastDateTimeEvents(EventType.TRANSACTION_LINK_REDEEM)
+  klickTippSendFieldToUser(linkRedeemedEvents, 'GDD last invited')
+  
+  const confirmContributionEvents = await lastDateTimeEvents(EventType.ADMIN_CONTRIBUTION_CONFIRM)
+  klickTippSendFieldToUser(confirmContributionEvents, 'GDD last created')
+}
+void exportEventDataToKlickTipp()
+// void retrieveNotRegisteredEmails()