Hi there,
Invalid client is a general Oauth issue that most probably is beyond the scope of this support channel. If you are using one of our client libraries you can check how a proper credential file is filled out by clicking on one of our libraries in the sidebar of our
client libraries guide, then clicking on one of the Oauth 'flow' guides. If you are using
REST Interface we have our
Authorization and HTTP Headers guide for proper setup of credentials.
With that being said did you make certain there are no leading or trailing spaces or wrong style string identity marks in Client Id and Client secret in your settings? You can also look up popular self help websites with this error.
Regards,
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| Aryeh |
| Google Ads API Team |
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