Description:The Apple Wallet Extension is an Apple requirement that enables a card issuer’s app to interact with Apple Wallet for card provisioning and management.
For the Wallet Extension implementation, please refer to the documentation published by Apple in your Partner Hub.
Please note that Apple’s 'primaryAccountIdentifier' corresponds to the 'panReferenceId field'. This value can be retrieved either through the 'Get All Tokens by Card' API or via the 'tokenCreatedOrUpdated' callback.