Hi Thijs, I had to delete your previous response and repost it below :
"Hi Peter thanks for replying. I checked this and I am using the correct e-mail account address for as far as I can tell. The (service account) e-mail address I use to generate the access token is listed under credentials compatible with this API (in Google Ads Api). The email address itself looks something like this: "XXXXXX". BTW The way I generate the accessToken is exactly the same as I do for accessing the analytics Api which uses the same service account and does work. So I still need some help. Kind regards Thijs" This is because any form of account related email or information is a potential security risk when exposed publicly. Moving forward, the @developer.gserviceaccount.com user that you used may not be the correct user to be logged in to when generating your service account credentials. Could you try and go to the Tools icon > Account access > USERS view of your Google Ads account and login to the Google API console as one of the users listed in the said view? Once in the Google API console, you may retry generating the service account credentials. Should the issue persist, you may provide the user (email address) that you were logged in to so our team can investigate. Please note that when you send your user or email address, you may use the Reply privately to author option. Best regards, Peter Laurence Napa Oliquino Google Ads API Team ref:_00D1U1174p._5004Q25Z2u8:ref -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog: https://googleadsdeveloper.blogspot.com/ =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/VLuJ-000000000000000000000000000000000000000000000QHRI94006R1mTLH1RXu0E_NFpb4kUw%40sfdc.net.