My app has been untouched and successfully connecting to the AdWords API since v201506.I am using the php client library and auth.ini for credentials.
Suddenly today the follow error is triggered:
[soap:Server] [AuthenticationError.OAUTH_TOKEN_INVALID @ ; trigger:'<null>'] ... thrown in ... Google/Api/Ads/Common/Lib/AdsSoapClient.php on line 217
Why is this error occurring?
What do I need to do to get my credentials working again?
New RefreshToken? How? (it was a while ago that I set it up and I think the process has changed).