Fix Microsoft Bookings Customer Details Missing in Outlook Calendar
Question details
Customer information disappears from Outlook calendar events generated by Microsoft Bookings.

- Product
- Microsoft Bookings and Outlook
- Device & OS
- not provided
- Scenario
- Staff members are checking room reservations in their Outlook calendar to identify the customer associated with a specific booking.
- Observed behavior
- Customer details initially appear in the event subject but subsequently disappear, preventing staff from identifying the customer.
Ensure that your Microsoft 365 subscription is active and that you have administrator access to the Microsoft Bookings calendar settings to verify your integration preferences.
Verify Bookings Service and Calendar Settings
Check the configuration in Microsoft Bookings to ensure customer data is properly set to sync with your Outlook calendar.
Sometimes, recent service updates or incorrect custom field configurations can cause data to drop from calendar syncs. Ensuring that the required fields are properly mapped is the first step in troubleshooting.
Navigate to the Microsoft 365 admin center, log in with your credentials, and open the Microsoft Bookings app.
Choose the specific Booking page where your room reservations and services are managed.
Go to the 'Services' tab from the left-hand menu and select the specific service being booked.
Scroll down to the 'Custom fields' section and ensure that customer information (such as name and email) is marked as required.

Contact the Microsoft Bookings Support Community
If settings are correct but the issue persists, reaching out to Microsoft Support is necessary as this behavior may reflect a backend service limitation or bug.
Manage Your Schedules Seamlessly with WPS Office
If you are tired of dealing with synchronization glitches between Microsoft Bookings and Outlook, consider managing your schedules and reservation trackers with WPS Office. It provides a lightweight, highly compatible, and free alternative for all your spreadsheet and documentation needs.
- 1. Download WPS Office: Visit the official WPS website to download and install the free Office suite.
- 2. Create a Schedule Tracker: Open WPS Spreadsheet and use a calendar or scheduling template to safely log your customer reservations.
- 3. Save and Share: Save your schedule in .xlsx format to ensure seamless sharing and compatibility with MS Office users.

Frequently Asked Questions
Why do Microsoft Bookings events show up in Outlook without customer names?
This can happen due to a sync delay, a temporary glitch in the Bookings-to-Outlook API, or specific privacy settings in your Microsoft 365 tenant that automatically strip personally identifiable information from shared calendar events.
Can I recover the missing customer details directly from the Outlook calendar event?
Once the details disappear from the Outlook calendar subject line, you typically cannot recover them directly from Outlook. You must log back into the Microsoft Bookings dashboard to view the original reservation and the associated customer details.
How can I prevent customer data from disappearing in future Bookings?
While this is often a backend Microsoft issue, you can minimize sync errors by ensuring that your custom fields in Bookings are set to 'Required' and keeping your Microsoft 365 applications fully updated.




