Error: The user must be signed up for Google Calendar

If you receive this error when attempting to sync calendar data or create an event, it means the Google account is authenticated, but the core calendar service is currently disabled for that user.

403 Forbidden: The user must be signed up for Google Calendar

Cause

This issue occurs because the Google Workspace (formerly G Suite) administrator has explicitly turned off the Google Calendar service for that specific user, group, or Organization.

The user's account is valid for other Google products (like Drive or Gmail), but the API is blocked because the necessary Calendar product is not active on their license.

Resolution

The user must contact their Google Workspace Administrator and request the following steps be performed in the Google Admin Console:

1. Enable the Service: The Administrator needs to verify the user's license and then navigate to Apps -> Google Workspace -> Calendar and ensure the service status is set to "On" for the affected user.
2. Re-authenticate: After the service is successfully enabled by the administrator, the user must re-authenticate their Nylas grant to ensure that permissions are correctly refreshed and the connector can access the newly activated calendar.

See Also: Mail Service Not Enabled (This is the equivalent error for Gmail ).

Updated October 28, 2025 10:49