"Some error occurred" message when trying to open booking's link

That error message “Some error occurred” is unfortunately a pretty generic one in Microsoft Bookings, and it can show up for a few different reasons. Most commonly, it happens when there’s a temporary issue with the Bookings service itself or when something on the page (like a connected workflow or staff calendar) isn’t syncing properly. You’re right that Power Automate connections usually shouldn’t block access to the booking page, but if a flow linked to Bookings has lost its connection or uses outdated permissions, it can sometimes cause the page to fail to load correctly. I’d suggest first checking that all staff calendars and Power Automate connections linked to the page are active and reauthenticated. Clearing the browser cache or trying the link in a private window can also help rule out a local caching issue. If everything looks good on your end and the issue persists, it might be a temporary Microsoft-side problem again, so it’s worth checking the Microsoft 365 Service Health dashboard to see if there’s an active Bookings outage or degradation.

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