diff --git a/impl/src/main/java/de/fitko/fitconnect/impl/auth/DefaultOAuthService.java b/impl/src/main/java/de/fitko/fitconnect/impl/auth/DefaultOAuthService.java
index 3d808799a91a4030558d0d122de0582397fd3a87..754a71de438f944d4b29ef7d739e044c26ee8b12 100644
--- a/impl/src/main/java/de/fitko/fitconnect/impl/auth/DefaultOAuthService.java
+++ b/impl/src/main/java/de/fitko/fitconnect/impl/auth/DefaultOAuthService.java
@@ -39,9 +39,12 @@ public class DefaultOAuthService implements OAuthService {
             put("grant_type", "client_credentials");
             put("client_id", clientId);
             put("client_secret", clientSecret);
+
         }};
 
-        Arrays.stream(scope).forEach(s -> data.put("scope", s));
+        if(scope.length > 0){
+            data.put("scope", String.join(",", scope));
+        }
 
         return data.entrySet().stream().map(e -> e.getKey() + "=" + e.getValue()).collect(joining("&"));
     }
diff --git a/impl/src/test/java/fitconnect/impl/auth/OAuthTokenIntegrationTest.java b/impl/src/test/java/fitconnect/impl/auth/OAuthTokenIntegrationTest.java
index 6a1e90e809f1b46025e238887b28a90444482f52..70413581b63f5bfd01bdb5fadb881adad8cd64ec 100644
--- a/impl/src/test/java/fitconnect/impl/auth/OAuthTokenIntegrationTest.java
+++ b/impl/src/test/java/fitconnect/impl/auth/OAuthTokenIntegrationTest.java
@@ -20,13 +20,14 @@ class OAuthTokenIntegrationTest {
         var tokenUrl = "https://auth-testing.fit-connect.fitko.dev/token";
         var clientId = "781f6213-0f0f-4a79-9372-e7187ffda98b";
         var secret = "PnzR8Vbmhpv_VwTkT34wponqXWK8WBm-LADlryYdV4o";
-        var scope = "send:region:DE";
+        var scope1 = "send:region:DE";
+        var scope2 = "send:region:EN";
 
         var authService = new DefaultOAuthService( new RestTemplate(), tokenUrl);
         final Sender sender = new SubmissionSender(authService, null, null, null);
 
         // When
-        Optional<OAuthToken> token = sender.retrieveOAuthToken(clientId, secret, scope);
+        Optional<OAuthToken> token = sender.retrieveOAuthToken(clientId, secret, scope1,scope2);
 
         // Then
         assertTrue(token.isPresent());