Can't access Google AdWords Service. Getting "Invalid Grant" error.

[raman kumar]

The two ways through which i get the refresh token are as follows:
1) Without making any MCC account with the help of Outh 2.0 work flow
2) With MCC account, after getting the code and place it in GetRefreshToken.php.
I will get the refresh token.

After that when i am using the Google AdWords Service like CustomerService or CampaignService i am stuck with an error i.e., "Invalid Grant".

It is highly apperciable if anybody will help me in resolving this error. Along with this i want to know how can i use Google AdWords Service in php.

With Regards,
Raman

[Anash P. Oommen (AdWords API Team)]

Hi Raman,

Are you using the latest PHP client library? And generating OAuth2 tokens for the same login email as that of your AdWords account?

Cheers,
Anash P. Oommen,
AdWords API Advisor.