You'll need valid credentials to re-authorize a token. Note also that some APIs require you to log into the service account when re-authorizing.
To re-authorize an expired OAuth token:
- Click your Account Name (located at the bottom of the left navigation sidebar) and select Account > Connected Accounts.
If you don’t see the above option, click the button in the left navigation sidebar and select Connections.
- Click the Name of the token that requires re-authorization.
- Click Re-Authorize.