Error 'You no longer have access to fields or filters defined in this Calendar'

Overview

This error occurs when the user's Profile lacks the minimum field-level permissions required to display Calendars and Events in Salesforce Lightning Experience. There are three possible causes and corresponding resolutions.

Resolution 1: Set Minimum Field Permissions on the Profile

Navigate to the user's assigned Profile.

Set Field Permissions (see Additional Resources) to at least 'Read' access for the following Event object fields:

• All-Day Event (IsAllDayEvent)
• Subject (Subject)
• Start (StartDateTime)
• End (EndDateTime)
• Location (Location)
• Description (Description).

Resolution 2: Group and Professional Editions — Add All-Day Event to the Event Layout

In Group and Professional Editions, the 'All-Day Event' field must be added to the Event page layout. If the field is missing from the layout, users will receive the calendar access error. 

Resolution 3: Experience Cloud Community — Check Calendar Sharing Settings

If this error occurs in an Experience Cloud community (formerly Community Cloud), verify the Calendar object sharing settings:

Setup > Quick Find 'Sharing Settings' > Search for 'Calendar' object > Verify that Default Internal Access and Default External Access are not set to 'Hide Details and Add Events.' Uncheck if enabled.