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Some terminals will enable you to check the numbers electronically, in which case you will be prompted to key-enter the last four digits of the embossed account number. Some terminals will display the number encoded in the magnetic stripe while others will print it out on the transaction receipt, in which case you will only see the last four digits. Check the owner’s manual or call the manufacturer for the exact procedure. Your point-of-sale (POS) machine should allow you to verify whether the account number embossed on the face of the card matches the one encoded in the magnetic stripe. Skip this procedure if the transaction amount is below your floor limit. Do not complete the payment unless your authorization request is approved.

Obtain transaction authorization approval.They limit your ability to verify payment information, are much more prone to processing errors and get higher interchange rates.

Avoid key-entered transactions as much as you can. If you incorporate the following best practices into your payment acceptance process, you will be able to verify the legitimacy of both the card and your customer in each transaction: Industry rules require it to ensure protection for cardholders and issuers against fraud and merchants need to do anyway it to protect themselves.Ĭard validation is much more easily done in a face-to-face setting than it is in virtual transactions. Merchants need to verify the validity of both the card and its cardholder for each payment.