Bookings allowing people to book when staff are not available on their personal calendar

Colin 20 Reputation points
2026-07-20T22:48:10.0833333+00:00

We have multiple booking centers that are suddenly allowing people to book even though the times are not available on the staff member's calendar.

I have checked all the settings and made sure the calendar is synched. Is there an issue with bookings right now?

Here are screen shots.

Screenshot at Jul 20 15-45-02

Screenshot at Jul 20 15-44-12

Screenshot at Jul 20 15-43-14

Moved from: Microsoft 365 and Office | Other

Outlook | Web | Outlook on the web for business | Calendar

Answer accepted by question author
Huy-K 13,980 Reputation points Microsoft External Staff Moderator
2026-07-20T23:30:27.13+00:00

Dear @Colin,

To resolve this, Microsoft’s support team will need to step in. A technical support engineer can perform a remote session to investigate the situation verify the backend configurations, and run any necessary synchronization tools to resolve the problem. If the issue requires further attention, they can refer it to a specialized team for deeper analysis.   

  Here’s what your Office 365 Global Admin should do next:       

  1. Submit a Service Request: The Global Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.     
  2. Find Your Microsoft 365 Admin: If you’re unsure who the Global Admin is within your organization, you can find guidance on locating them here: How do I find my Microsoft 365 admin? - Microsoft Support.    
  3. Call Microsoft Support: For additional assistance, use this link to find the appropriate contact number: Global Customer Service phone numbers - Microsoft Support

I hope the information shared helps point you in the right direction.

As a moderator, I do not have the tools to investigate your specific account directly, as this is a support forum between users. Moderators and collaborators, including external Microsoft employees, may not directly intervene in the functionality of Microsoft products or access internal systems. Our role is limited to providing technical guidance on reported problems, requests, or ideas. However, I will do my best to guide you as clearly as possible.

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