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What should be the time limit for payment gateway checkout to expire on the merchant's website? Or should there be any such expiry at all?

  • Unless you have infinite resources there should be a timeout. But just how long that should be is a good question. Certainly over half an hour. – Hennes Jan 29 at 17:48
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    Checkout process is not one single screen though. For instance, you can add items to an Amazon basket / checkout and until you pay it never 'times out' - those items are there until you clear them out. Checkouts have multiple stages - confirming the items you want, entering address, entering payment, final confirmation... Can you be more specific as to what you mean by 'timeout' here? At what point in the process? What is your current concern? – JonW Jan 30 at 11:11
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    I feel like this answer is simply a business/security/engineer descision, from a UX perspective no expiration will always be better than an expiration. – DasBeasto Jan 30 at 16:01
  • @JonW It is a payment gateway checkout popup which will initiate on merchant website after user proceeds to payment. It is not coupled with cart etc. and is solely responsible for transaction. – bhagat Feb 5 at 13:41

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