Go to Setup -> Registration -> Confirmation tab -> Click on edit confirmation page:
Locate "Apple Wallet Passes" on the left-hand side and enable the setting. From here, you can also personalize your pass by adding a custom color and logo.
3. Once Registration is complete on the mobile device, the Confirmation page will show "add to apple wallet" -> Click to add to Apple wallet -> You will see the ticket and on the upper right corner click "add":
Examples: This event I added a background color and a logo (which you can see below).



