API Worked for months now get this error { "error": "invalid_grant", "error_description": "Bad Request" } Fatal error: Uncaught exception 'OAuth2Exception' with message '{ "error": "invalid_grant", "error_description": "Bad Request" }

[shend...@dealerocket.net]

PLUS, I have the SAME script running for 5 other of my adwords accounts. 2 give this error, the others run fine.

What the heck happened? Anywhere I should start? Thanks!

[Luis Xander Talag (AdWords API Team)]

Hi Shenderson,

The invalid_grant error normally occurs due to expired refreshToken. To resolve this issue, you may try to regenerate the refreshToken and the OAuth2 credentials using an email address which currently has access to your AdWords account and then retry the request again. 

Should the issue persist, could you provide which email address you used when you generate your credentials and your clientCustomerId so I can investigate further (for security purposes, kindly reply privately to author with your details)?

Thanks and regards,

Xander

AdWords API Team

[shend...@dealerocket.net]

Hello Luis, yes I figured out the same thing yesterday.

It would sure be nice if the API would be a bit more precise in it's error messaging.

A message stating "Your refreshToken has expired, please regenerate a new refreshToken and update your script"

That would have saved me hours........

[Luis Xander Talag (AdWords API Team)]

Hi Shenderson,

Thanks for your suggestion, I'll try and create a feature request regarding this, but we can't guarantee when and whether the feature will be implemented soon. For now, you may keep an eye on our blog for updates.