--- a/ckanext/ga_report/ga_auth.py
+++ b/ckanext/ga_report/ga_auth.py
@@ -36,7 +36,7 @@
     credentials = _prepare_credentials(token_file, credentials_file)
     http = credentials.authorize(http)  # authorize the http object
 
-    return build('analytics', 'v3', http=http)
+    return credentials.access_token, build('analytics', 'v3', http=http)
 
 
 def get_profile_id(service):
@@ -53,7 +53,11 @@
         return None
 
     accountName = config.get('googleanalytics.account')
+    if not accountName:
+        raise Exception('googleanalytics.account needs to be configured')
     webPropertyId = config.get('googleanalytics.id')
+    if not webPropertyId:
+        raise Exception('googleanalytics.id needs to be configured')
     for acc in accounts.get('items'):
         if acc.get('name') == accountName:
             accountId = acc.get('id')