[BUG] PaymentSheet.FlowController is not saving payment methods without making the payment

[ppluskotaBrival]

Summary

I'm migrating from Stripe 23.x to 24.x. In the app, we had the option to modify user payment methods using STPPaymentOptionsViewController without making a payment. I have updated it to PaymentSheet.FlowController. The user can add new payment methods or modify existing ones there; however, the results are not being saved. Am I doing it correctly, or is there a better way to handle it without making a payment?

Code to reproduce

        var config = PaymentSheet.Configuration()
        config.merchantDisplayName = "company_name"
        config.customer = .init(id: intentData.userId, ephemeralKeySecret: intentData.secret)
        config.returnURL = "return_url"
        config.allowsPaymentMethodsRequiringShippingAddress = true
        
        let intent = PaymentSheet.IntentConfiguration(mode: .setup(currency: "USD", setupFutureUsage: .offSession), confirmHandler: { _, _, intentCreationCallback in
            handleConfirm(intentCreationCallback)
        })
        
        PaymentSheet.FlowController.create(intentConfiguration: intent, configuration: config) { result in
            switch result {
            case .failure(let error):
                controller.showAlert(title: "Sorry", message: error.localizedDescription)
            case .success(let paymentSheetFlowController):
                paymentSheetFlowController.presentPaymentOptions(from: controller)
            }
        }

iOS version

16, 17, 18

Installation method

SPM

SDK version

24.16.2

[davidme-stripe]

Thanks for filing this! This is intentional, we don't save the PaymentMethod to the Customer until the SetupIntent/PaymentIntent is confirmed. I've seen a few similar asks (it sometimes makes sense to attach the card details before the PaymentIntent is confirmed), so we'll keep this open to track the feature request.

If you're just building a payment method management page (like in your app's settings), you may be interested in using Customer Sheet, which is just for adding/removing a customer's payment methods.