Apple Watch Messages not Mirroring iPhone (99+)

Hi niccolelyn,

Welcome to Apple Support Communities. You've tried some great troubleshooting steps so far. Just to make sure we fully understand, the issue is that the notifications remain on your Apple Watch even though those notifications were checked on iPhone. Right?

Does this only happen with the Messages app? If so, try the following from Set up iCloud for Messages on all your devices - Apple Support.

"Set up iCloud for Messages on your iPhone, iPad, or iPod touch

1. On your iPhone, iPad, or iPod touch, go to Settings > [your name] > iCloud.
2. Turn on Messages.
3. Any messages currently stored in iCloud are now accessible on your device, and any new messages you receive on your device will be stored in iCloud.
4. To see messages stored in iCloud, open the Messages app."

If it is already on, try disabling, then turning it back on. If the same continues, it may be best to reach out to Apple Support for further assistance since you've tried other troubleshooting already.

Have a great day!

Thanks for getting back to us, niccolelyn.

From here, contact Apple Support for further help with this.

Best regards.