"error" : "invalid_grant", "error_description" : "Invalid code." while authenticating

[Mhamad Canaan]

Hi everyone,

I want to authenticate users to access there accounts using the refresh token and the clientCustomerID, but whenever I click allow and go back with the code is the url this error pops up.

what is wrong?

[Yin Niu]

Hi, 

Could you be more specific about your problem? Are you having problem generating refresh token? Please take a look at OAuth 2.0 Authentication guide and you can also try it using OAuth playground. 

Thanks,

Yin, AdWords API Team. 

[Mhamad Canaan]

Hi,

I don't really know what is the problem, I am trying to do the authentication as dynamic, it works when i do it on my local host, the code I wrote takes the user to the AdWords sign in page and lets him accept to manage his account through my software, and it gives back the code and the code is generated into refresh token.

But when I integrated this code into the web application it gave me this error and I don't understand what it is, it is giving back the code but cant generate it into refresh token.

[Mhamad Canaan]

Hi, 

Thank you for your help but it turned out that i was calling the function twice that is why it gave me this error. Thanks a lot.

[Umesh Dengale]

Hello,

I am glad you found the fix. Please let us know if you need any other help with AdWords API.

Thanks,

Umesh, AdWords API Team.