Error?

Same frustration with this unfixed error

The touted solution of going to Bookings admin screen and magically it starts working, has lost its magic.

Copilot gives same rant, then point to this:

4. Ongoing Issues:

This error has been reported by multiple users, indicating it may be a broader issue with Microsoft Bookings. If the problem continues, consider reaching out to Microsoft Support or checking the Microsoft Community forums for updates and potential fixes. 
By following these steps, you may be able to resolve the "We could not fulfill your request" error in Microsoft Bookings. If the issue remains unresolved, it may be beneficial to monitor community discussions or contact Microsoft directly for further assistance.