Send & Receive Issues

How to Fix Microsoft Bookings Invitations and Reminders Not Sending

Huma Ashraf Ch Oct 23, 2026 868 views

Question details

Customers are not receiving meeting invitations or reminder notifications from a Microsoft Bookings calendar.

How to Fix Microsoft Bookings Invitations and Reminders Not Sending

Product: Microsoft Bookings
Device & OS: not provided
Scenario: A business is using Microsoft Bookings to schedule appointments with clients, but the automated communication is failing on the client's side.
Observed behavior: The Bookings calendar successfully accepts reservations and sends calendar invitations to the organizer, but fails to deliver any meeting invitations or reminders to the customers.

Before you start

Verify that the customer email addresses were entered correctly during the booking process and ask affected customers to check their spam or junk email folders.

Solution 1Recommended

Verify Booking Page Notification Settings

Check if the automated email notifications and meeting invites are properly enabled for the specific service in your Bookings settings.

Microsoft Bookings allows you to customize notification settings per service. If these are disabled, customers will not receive confirmation emails or reminders.

Open Bookings Settings

Navigate to the Microsoft Bookings dashboard and select your specific booking page.

Check Customer Notifications

Go to the 'Services' tab, select the affected service, and ensure that the 'Send a meeting invite to the customer' option is checked.

Review Reminders

Scroll down to the 'Reminders and Confirmations' section and verify that customer reminders are actively set up to send at the correct intervals.

Verify Booking Page Notification Settings

Solution 2

Check Tenant Mail-Flow Rules

Investigate if organization-level email routing policies in Microsoft 365 are inadvertently blocking outbound emails from Microsoft Bookings.

Solution 3

Seek Specialized Microsoft Support

Escalate the issue to the Microsoft Tech Community if your tenant configurations and booking page settings are perfectly correct.

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Frequently Asked Questions

Why do Microsoft Bookings emails go to the customer's spam folder?

Bookings emails are sent from an automated Microsoft system. Depending on the customer's personal email provider security settings (like Gmail or Yahoo), these automated notifications can sometimes be incorrectly flagged as spam. You can ask customers to whitelist your Bookings domain.

Can I customize the email address that sends Microsoft Bookings invitations?

By default, Bookings sends emails from the system-generated mailbox associated with the Bookings calendar. While you can change the display name, altering the actual sending address requires advanced Exchange admin configurations and modifying the SMTP addresses.

Does staff availability affect whether customer invitations are sent?

Yes. If the assigned staff member does not have an active Exchange Online mailbox or if their availability settings prevent proper scheduling, the system might fail to generate and dispatch the complete meeting invitation to both parties.

Are SMS text reminders available in Microsoft Bookings?

Yes, Microsoft Bookings supports SMS text notifications for customers in certain regions. However, this feature requires specific licensing (such as Microsoft Teams Premium) and must be explicitly enabled and configured in the service settings on the booking page.

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