madadeivi-card-duplicate | Stripe Developers | Page 1

cursive sentinelBOT Feb 14, 2023, 4:42 PM

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copper helm Feb 14, 2023, 4:44 PM

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Hello 👋
Not sure if I understand your ask correctly

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are you asking if a customer can keep adding the same card and create a new payment method repeatedly?

wicked summit Feb 14, 2023, 4:54 PM

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yes, in test mode one customer can keep adding the same information card (number, cvv, expiration date) and the result is success, but my doubt is this scenario happens in live mode?

trim hedge Feb 14, 2023, 4:54 PM

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madadeivi-card-duplicate

trim hedge Feb 14, 2023, 5:13 PM

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Sorry I missed your message it happened right when I renamed the thread

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This is all expected, and yes it happens in Live mode too. We don't do any de-duplication on card details. Usually you don't save card details unless your UI already lets you explicitly show the already saved card so that the Customer doesn't have to enter those again

wicked summit Feb 14, 2023, 5:33 PM

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Ok thanks for your response, i have in my UI a list of cards to show every payment method card information (last4 digits, network, alias) to help the user to identify which payment method is.
But with your answer you tell me that one user can add the same information card in live mode and i show to the user repeatedly information in my UI and i can't do anything to only show distints or to not allow them add the same card information?

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I don't save card details so I trust in the information that Stripe provided me.
I have a bug reported about the user can add the same information card repeatedly, but i couldn't control it in my UI and backend.

trim hedge Feb 14, 2023, 5:37 PM

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I never said you can't do anything about it. You can use the fingerprint on the PaymentMethod to find duplicates: https://stripe.com/docs/api/payment_methods/object#payment_method_object-card-fingerprint

wicked summit Feb 14, 2023, 5:39 PM

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the fingerprint is unique by a combination of card information?

trim hedge Feb 14, 2023, 5:39 PM

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the fingerprint is unique for that card number

Uniquely identifies this particular card number. You can use this attribute to check whether two customers who’ve signed up with you are using the same card number, for example. For payment methods that tokenize card information (Apple Pay, Google Pay), the tokenized number might be provided instead of the underlying card number.

wicked summit Feb 14, 2023, 5:39 PM

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Oh that's help a lot man! 🙂

#madadeivi-card-duplicate