How to handle payment cancellation in a credit card app?

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Hello everyone, we are developing a credit card payment application and encountered a scenario that cannot be resolved through support from the developer community and consulting partners:
Scenario description: 3D security phase buyers to cancel or cancel the payment and be redirected back to Shopify's checkout
Problem description: Our application does not know what action to take after the buyer cancels the payment and calls the API? PaymentSessionResolve? PaymentSessionReject? PaymentSessionRedirect? Or some other actio