oauth verification and testing

[ramamrajdev]

after adding client id and setting up consent details still I'm getting 403 when trying to give authentication to the app. FYI I haven't published the app still it is on testing phase. 

Any suggestions ?

[RonEtch]

Hi @ramamrajdev 

Welcome to Google Cloud Community!

The error code 403 means the server know and accepts the OAuth token provided by the caller, yet it refused to grant access to the requested resource. Usually the reason of this error is not having required role that grants the necessary permission(s) for the requested operation.

You can check this guide to explain more regarding  Cloud IAM Permissions.

I hope this information is helpful.

If you need further assistance, you can always file a ticket on our support team.