How to register Associated Domains with Xcode 11?
If you don't have a paid Apple developer account, remove "✓" from Automatically manage signing. Then "Associated domain" will be available.
worked for me in Xcode 12 !
The problem was with my Developer Account, it wasn't fully approved by Apple. So, as soon it was approved, Associate Domains (and also Notifications) appeared in my Capabilities list. Don't know why they would limit development due to account status but they did.
- In xcode go to Editor > Add capability
- Just double click on "associated" domains in the window that opens
- Add your domain
