How to Setup For Apple Pay Later for testers testing my code?

Hello!

For Apple Pay, I'd like to disable the option for a customer selecting Apple Pay Later (tab).

In Swift, very easily modify the PKPaymentRequest with:

if #available(iOS 17.0, *) { paymentRequest.applePayLaterAvailability = .unavailable(.itemIneligible) }

However, how can this be setup to test that it works?

Very easily add sandbox account, and test cards, but not so easy to enable Apple Pay Later, or documented so the end user (tester) can test it.

Anyone know how to go about setting this up?

Thanks!!