Error: Cannot connect to Calendar API: Unauthorized Client. Client is unauthorized to retrieve access tokens using this method.

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3 comments

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    Colin Benson

    I am seeing this error but have checked and confirmed that Calendars are turned on in Google.

    Mail and contact information completed successfully, but any attempts to migrate calendars fail.

    Are there any other reasons why this error would occur?

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    Victoriano Valdes

    I am seeing this error but have checked and confirmed that Calendars are turned on in Google.

    Mail and contact information completed successfully, but any attempts to migrate calendars fail.

    Are there any other reasons why this error would occur?

  • Avatar
    Greylock Team

    I'm getting this error even though I am able to log on as the user and open his calendar. Created a support ticket. Hopefully someone can assist with this issue.

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