The Customer Rewards Card Number field is not included in the Customer API: Get / Post or Put.

So currently there is only 1 method to add a number to the customer record - during a transaction, or directly from a POS till only. I can see how that is relevant to a physical card but people rarely carry these and use digital wallets instead.

Including this field in the API could allow the possibility to dynamically create a unique card number using an external provider, add to the customer record and send that to the customer to then add to their phone wallet. This would require an external wallet provider and some middleware so not for everyone but could have large benefits for those that want to develop Customer Rewards in store digitally.