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How to Create a Single Date and Time Slot in Microsoft Bookings

Huda Qurayshi Oct 7, 2026 869 views

Question details

The user wants to offer only one specific appointment slot (e.g., April 23, 2024, from 11:00 AM to 12:00 PM) in Microsoft Bookings and needs to know how to restrict availability and limit the number of bookings for that slot.

How to Create a Single Date and Time Slot in Microsoft Bookings

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Configuring a one-time service appointment with highly restricted date and time availability, alongside setting a strict booking capacity.
Observed behavior: The user needs the correct configuration steps to isolate a single booking slot while ensuring other times are unbookable. Additionally, they are experiencing an issue where the custom date still does not appear as available on the live booking page.

Before you start

Ensure you have administrator access to your Microsoft Bookings calendar and verify that the assigned staff member does not have conflicting events on their personal Outlook calendar during your targeted time slot.

Solution 1Recommended

Configure a Custom Date Range for a Single Time Slot

You can isolate a single date and time for appointments by setting the general availability to 'Not bookable' and creating a specific date range exception.

Microsoft Bookings allows you to override default business hours by specifying custom date ranges. By disabling standard availability, you ensure clients can only book within the exact window you manually provide.

Edit Your Service

Log in to Microsoft Bookings, navigate to the 'Services' page from the left-hand navigation menu, and select the specific service you want to modify.

Disable General Availability

Scroll down to the 'Availability options' section. Under the 'General availability' dropdown menu, select 'Not bookable'. This prevents anyone from booking standard business hours.

Set Custom Availability

Click on 'Set different availability for a date range'. Choose your targeted date (e.g., April 23, 2024) for both the start and end date fields.

Define the Exact Time Slot

Adjust the hours for that specific date to your desired window (e.g., 11:00 AM to 12:00 PM), remove any extra time blocks for that day, and click 'Save' to apply the changes.

Configure a Custom Date Range for a Single Time Slot

Troubleshooting Hidden Slots: If the custom date still does not appear on the live booking page, check the 'Staff' settings. Ensure the assigned staff member is selected, has working hours that cover this time slot, and that 'Events on Office calendar affect availability' is not blocking the time.

Solution 2

Implement Capacity Limits for Your Single Slot

Because standard 1-on-1 appointments in Microsoft Bookings do not have a built-in total capacity limit for an entire day, you must adjust the attendee settings or use separate services to control booking volume.

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Frequently Asked Questions

Why is my custom date slot not showing up on the Bookings page?

This usually happens if the assigned staff member has a conflicting event on their connected Outlook calendar, or if their standard working hours do not overlap with the custom time slot you created. Check the 'Staff' tab to ensure their schedule is clear for that specific date and time.

Can I set a maximum number of attendees for a single booking slot?

Yes, if you configure the service to act as a group session. Open the service settings and adjust the 'Maximum attendees' field to your desired limit (e.g., 10). This allows multiple people to book the exact same time slot until the capacity is reached.

How do I make the rest of the calendar year completely unavailable?

In your service's Availability options, set the 'General availability' dropdown entirely to 'Not bookable'. Once general availability is turned off, you can use the 'Set different availability for a date range' button to manually open up only the specific days or hours you want clients to see.

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