Free/busy – Google – Google.Apis.Requests.RequestError Invalid Credentials [401]

Problem Performing free/busy requests to Google failed with the error ‘Google.Apis.Requests.RequestError Invalid Credentials [401] Errors [ Message[Invalid Credentials] Location[Authorization - header] Reason[authError] Domain[global] ] ‘. Cause The login filled in the field Free/busy User Login is not valid Resolution Check if your user have: A valid account (no issue with password expired, or inactive account) […]

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