Problem

During a migration from Google Apps, you’re getting this error:
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]
]

Cause

The account has a problem with Google authentication.

Resolution

Please check following issues:

1. User doesn’t exist

2. User is suspended

3. Password has expired

 

Then restart the migration.

 

Note: even if you see this error, the platform will still have access to mails and contacts so these items will be migrated successfully.