My guess is that configuration can be used by the issuer to execute anti-fraud measures based on primaryAccountIdentifier, cardholderName, etc.
rodrigodock
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Same here. Can't make the "From apps on your iPhone" option appears on Apple Wallet