I have a gmail account in which I have permission to from my social media department for accessing google ads.
using that gmail account I have created service account and also added clientid, sercet key and developer key in 'google-ads-php.ini' .
but still it is showing me this error.
Client error: `POST
https://oauth2.googleapis.com/token` resulted in a `401 Unauthorized` response: { "error": "unauthorized_client", "error_description": "Unauthorized" }
Kindly help me out so that I can get the data .