VACCINATION CERTIFICATE only in WALLET in IPHONE.. not in watch

Hello Urkee,

Thanks for using Apple Support Communities. We understand that your vaccination certificate no longer appears on an Apple Watch. We're happy to look into this with you.

We recommend that you restart your Apple Watch and paired iPhone. Restarting can resolve many unexpected behaviors.

Restart your Apple Watch

Restart your iPhone

Also, make sure that both devices have the latest software installed.

Update your Apple Watch

Update your iPhone, iPad, or iPod touch

Let us know if these steps help. If not, be sure to include any other troubleshooting steps that you may have tried.

Have a nice day!

Send to yourself via iMessage your certificate and from watch save it into watch wallet

this workaround works