Not getting Health app invite notification

Hi faltubes,

Thanks for coming to Apple Support Communities for help today.

We can share an article with steps that you can both check: Share and view health data in the Health app.

Make sure these requirements are met.

"Here's what you need

• An iPhone or iPod touch with iOS 15 or later is required to share your health data. 
• An iPhone with iOS 16 or later is required to invite someone to share health data.
• An iCloud account with Health turned on and two-factor authentication enabled.
• The person you want to start sharing with must be saved in your Contacts with their iCloud account email included."

He can also try accepting the invite from the Fitness app.

"Accept an invite

When someone invites you to share Activity or compete, a notification appears on your Apple Watch. Tap Accept or Ignore. If you don't get a notification, you can accept from the Fitness app:

1. Open the Fitness app on your iPhone, then tap the Sharing tab.
2. Tap the Account icon  at the top of the screen.
3. Tap Accept or Ignore."

If the issue continues after going through the article's steps, please contact Apple Support.

Have a fantastic day!