This has to be done by App, at Ordering we offer you 3 to get started with the best ordering platform, so you'll have to do it 3 times, the first time ordering support team will help you set up, but afterward, you'll have to do some configuration if required.
1- Go to your Apple Developer account and sign up.
2- Click on the “Certificates, Identifiers & Profiles” section.
3- On the left section, click on “Identifier”, add a new identifier and select the “App IDs” option. Click on continue.
4- For the next step you need to write the Bundle ID.
Then enable the "Apps Groups" "Associated Domains" "Sign in with Apple" and "Push Notifications" below. Click "Continue".
5- After you made this you can click on the "Register" Button and the process will be saved.
6- Repeat the same process and create another Identifier, but this time add ".OneSignalNotificationServiceExtension" at the end of the Bundle ID.
7- Once you have registered the two identifiers, you will need to register a new App Group.
8- On the section of the identifier name, make sure to write the same name as the first identifier and end it with ".onesignal" (The "group" at the beginning is set up automatically).
9- Once you have done this, go to the identifier section and select your new identifiers.
Enable the new App Group that you have created in each one and that's it. The process will be complete.
The iOS apps required the Apple account credentials, so the builder can connect with the Apple account and verify the previous settings.
Go to the builder my.ordering.co
Select the app that it going to be build, and click on Build and later go to the Keys store section
And finally the 2Fa needs to be updated
After all these steps arre completed, go to the Build apps section, and click on BUILD TEST
BUILD PRO is for the app is ready to submit on the store.
As Always, Happy Ordering.