When booking details are missing in the Hotels.com app and the website shows no bookings, there are several steps and checks you should follow to resolve the issue:

1. Wait a Little While After Booking
- Bookings can take up to an hour to appear in your account, whether on the app or website. If it’s been less than an hour, wait and try refreshing later1.

2. Confirm How You Booked
- Reservations made while not logged into your Hotels.com account may not appear in your account booking history.
- Bookings made through a third-party site or as a guest, or over the phone without giving your Hotels.com account details, may not show up in your app or online account1.

3. Ensure You Are Logged Into the Correct Account
- Double-check the email address and Hotels.com account you are logged into. Sometimes bookings made under another account or email won’t appear in your current login1.

4. Check for App Issues and Update
- Outdated apps can malfunction or fail to display bookings. Update the Hotels.com app to the latest version via your device’s app store52.
- If the problem persists, clear the app cache in your device settings5.
- Restart your device after making these changes, which can help fix display glitches25.
- If none of these work, uninstall and reinstall the app25.

5. Internet Connection
- Make sure your device has a strong internet connection, as poor connectivity can prevent the app or site from displaying up-to-date information2.

6. Add Missing Booking Manually
- Some booking platforms allow you to add a missing reservation manually. Check if that option is available in the “My Bookings” or “My Stays” section1.

7. Contact Customer Support
- If your booking is still missing after all troubleshooting, contact Hotels.com customer service directly. Provide your booking confirmation (from your email) so they can trace and add the booking to your account17. Sometimes hotels or agents can help if there’s a mismatch between your profile details and the reservation3.

Key Troubleshooting Steps:

- Wait up to 1 hour after booking for it to appear1.
- Ensure you are logged into the correct Hotels.com account1.
- Update the app, clear cache, and/or reinstall25.
- Double-check how the booking was made (logged in, guest mode, third party)1.
- Contact Hotels.com support with your confirmation email if nothing appears17.

If you completed all steps above and still get no results, contact Hotels.com with your email confirmation of the booking for case resolution.