Hi, Thank you for reaching out to the Google Ads API support team.
Based on the provided information, I understand that you are encountering an invalid_grant error, The invalid_grant error usually indicates an issue with the refresh token. That said, you’ll need to regenerate credentials and refresh tokens. You may refer here to this guide for the steps on how you can regenerate credentials and refresh tokens. You may also check this sample code for generating user credentials. Additionally, I could see that you are using a V19 version. I would suggest you upgrade to the latest version, ’v21’, as soon as possible to benefit from new features. You may refer to this documentation on deprecation and sunset for more information regarding the specific deprecation and sunset dates for each available version. If the issue persists, please provide the complete API logs (request and response with request-id and request header) generated at your end when calling the API so that we can check from our end and assist you further. If you are using a client library and haven't enabled the logging yet, I would request you to enable logging for the specific client library that you are using. You can refer to the guides Java, .Net, PHP, Python, Ruby or Perl to enable logging at your end. For REST interface requests, you can enable logging via the curl command by using the -i flag. You can send the details via Reply privately to the author option, or direct private reply to this email. Thanks, Google Ads API Team Feedback How was our support today? [2025-09-02 13:32:08Z GMT] This message is in relation to case "ref:!00D1U01174p.!500Ht01u5axd:ref" (ADR-00331587) -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 "Google Ads API and AdWords 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 visit https://groups.google.com/d/msgid/adwords-api/P2yVW000000000000000000000000000000000000000000000T1YQXK001PpB7yECQPK-ABMLrA-Quw%40sfdc.net.