Hi, The 'invalid_grant' error usually occurs when the access token or refresh token is invalid or incorrect. Could you try regenerating the tokens <https://developers.google.com/adwords/api/docs/guides/first-api-call#get_an_oauth2_refresh_token_and_configure_your_client> following the steps in the linked guide? To verify that your credentials are correct, you could also try the CURL request provided below and see if you are able to generate the access token.
curl https://www.googleapis.com/oauth2/v4/token \ -d refresh_token=<replace with your-refresh_token> \ -d client_id=<replace with your-client-id> \ -d client_secret=<replace with your-client-secret> \ -d grant_type=refresh_token If you are still facing issues, could you please create a new thread and share the details of the error there? That will help us keep better track of the issues. Thanks, Sreelakshmi, AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords 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 Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/d170b5a1-90c6-454a-88ce-1f913406bf33%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
