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Cannot connect to Calendar API: Google.Apis.Requests.RequestError The user must be signed up for Google Calendar. [403]

Last Update: 6/1/2017 9:52 AM

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Cannot connect to Calendar API: Google.Apis.Requests.RequestError The user must be signed up for Google Calendar. [403] Errors [ Message[The user must be signed up for Google Calendar.] Location[ - ] Reason[notACalendarUser] Domain[calendar] ]

Answ​​er:


 
This error occurs when migrating a suspended mailbox in G Suite. ​​You must enable the mailbox in order to migrate. 

 
Restore a suspended user.

 
Note:​ Verfiying credentials will succeed. However, a migration will fail with the error. ​​​This error can occur when Google is the source or destination endpoint.