Microsoft Bookings issue, no email notifications: "The business hours aren't correct. Please check for overlapping times... "

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Microsoft Bookings issue, no email notifications: "The business hours aren't correct. Please check for overlapping times... "

Lizzie Hobbs 20

We are not receiving email notifications from our Bookings calendar of any new bookings, updated bookings or cancelled bookings, as of several days ago.

We do have the 'Notify the business via email when a booking is created or changed' option ticked on both of the services we have:

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However, I assume the problem is that there is no email address stored in the Business Information within the 'Send customer replies to' field:

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This did used to be populated, along with our business name etc., but none of that information is stored there now. It asks us to enter a business name:

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When I enter a name, the error message changes to 'The business hours aren't correct. Please check for overlapping times or a start time that comes after an end time.' :

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However, scrolling down to the Business Hours information, it does not list our business hours and does not allow us to amend this at all:

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We are therefore unable save any amended business information, including business name and an email address for notifications to be sent to, as the error message regarding business hours remains.

Has any else encountered this issue? Am I missing another setting somewhere?

Many thanks.

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Answer 1

Rin-L 17,805 Microsoft External Staff Moderator

Hi @Lizzie Hobbs,

Thank you for posting your question in the Microsoft Q&A forum.

You’re absolutely right that the “Send customer replies to” field normally auto‑populates with the email address of the user who originally created the booking page. And yes, if that field becomes empty for any reason (whether it was cleared accidentally or removed due to a sync issue), notifications will stop working because Bookings has nowhere to send them.

Going back to the issue you mentioned when you try adding the email but keep getting the business‑hours error. If you’re the person who originally created the booking page, try signing out of your account and signing back in to see if the Business Information section loads properly again. If the problem remains, you can also try clearing your browser cache completely, then log in once more and check that section again.

Another setting that sometimes resets Bookings correctly is the time zone. Try going to your booking page settings and opening the Region and time zone option. Choose the correct GMT time zone and save it. If the error still shows up, try temporarily switching to a different time zone, saving, and then switching back again. A quick refresh afterward can help Bookings reload its business hours logic. User's image

If none of these steps fix the issue, it might be helpful to create a new booking page just for testing. In a brand‑new page, "Send customer replies to" is usually filled in automatically again, and notifications should work normally. That will help you confirm whether the issue is isolated to the original booking page or if something broader is going on.

If you have any updates or notice any changes, please feel free to reply under this post. I’d really like to hear back from you so we can keep looking into this together. I’m here to help however I can.

Thank you for your patience and collaboration!

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Lizzie Hobbs 20 Reputation points

2026-03-06T12:51:04.4066667+00:00

Thank you very much for your help. I have tried your suggestions- logging out, clearing browser cache, and changing the time zone setting to something else and back, nothing has worked unfortunately.

I have set up another booking page for testing, and the "send customer replies to" field is populated and we are receiving email notifications as normal from that test page.

Is there anything else I can try? Very much appreciate the help!
Rin-L 17,805 Reputation points Microsoft External Staff Moderator

2026-03-06T13:06:27.2966667+00:00

Thank you for letting me know @Lizzie Hobbs, and truly, I appreciate the time and care you’ve put into trying all those steps. Your patience throughout this process really does mean a lot.

From everything you’ve shared, it seems more and more likely that something on the original booking page isn’t loading or behaving the way it should. Since your new test page is working perfectly, that tells us the issue is isolated to the older page, not your overall setup.

I really wish I could look deeper into what’s happening behind the scenes for you, but as a forum moderator, I don’t have access to the backend tools that would let me inspect or repair that specific page. I can help guide you and walk through the usual troubleshooting steps, but anything involving the underlying system settings would need someone on the support engineering team.

If it’s workable for you, continuing with the new booking page (setting it up the same way as your original one) might be the smoothest option for now. That way your notifications stay reliable and you won’t have to keep dealing with the errors on the old page. I know switching pages isn’t ideal, but using the new one for the time being could help make sure you don’t miss any important emails in the meantime.

If you’d like to try getting the original page looked at properly, opening a support ticket with Microsoft would allow an engineer to check the backend configuration and see what’s actually going on. They have deeper tools to look into issues that aren’t visible from the web interface.

You can follow the guidance here: Get support - Microsoft 365 admin | Microsoft Learn (If you’re not an admin yourself, please contact your administrator and ask them to open the request on your behalf.)

Tips: You can switch off the Support Assistant as shown in the screenshot, then type a few short characters into the search box and select Get Help. After that, wait for the Contact Support button to appear and click it. When you reach the contact‑method step, I recommend choosing Email, as it tends to be a more consistent and effective option in my experience. At the final step, be sure to clearly describe your request in the description fields so the support engineers can quickly understand your issue and assist you more effectively.

Once the ticket opens, a technical support technician can conduct a remote session to investigate the situation, review the backend configurations, and run the necessary synchronization tools to resolve the issue.

Thank you for your understanding, and I sincerely hope everything works out smoothly on your side and that things get back on track soon.
Lizzie Hobbs 20 Reputation points

2026-03-06T13:51:02.8+00:00

Thank you, I will do that!
Rin-L 17,805 Reputation points Microsoft External Staff Moderator

2026-03-06T14:15:14.49+00:00

Thank you so much for your kind and understanding reply.

I hope I’ll have the opportunity to support you again in the future. I’ll always do my very best to help within the scope of what I can provide here.

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Microsoft Bookings issue, no email notifications: "The business hours aren't correct. Please check for overlapping times... "

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