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swainjk · 03-23-2012

The Card-Present Transactions Implementation Guide, Appendix E, requires a longitudinal redundancy check (LRC) prior to submitting the track data. It specifies that the LRC character follows the End Sentinel. It does not specify how the LRC is calcul...

swainjk · 04-05-2012

TJ,I have been talking with Pioneer POS regarding an encrypted PIN Pad with an encrypted magnetic card reader for the system that I am developing. The reader sends encrypted track data to the gateway. When ordering the device, we tell them who our pr...

swainjk · 03-28-2012

Thanks for clarifying. The guide did not do a good job here.

swainjk · 02-20-2012

OK, I understand that. But, the transactino details are not showing up on the Transaction Details page on the Authorize.net account. I am just in the testing mode, so will test transactions even show up in Transaction Details?

swainjk · 02-09-2012

Michelle, If the itemID is passed with and accepted and approved transaction, how does one get that item information to show up in the email receipt that is sent from Authorize.net?

swainjk · 02-09-2012

Although the original post referenced PHP code, I am seeing the same problem with other HTTP posting. When I pass a transaction to the test server, I can include multiple line items, receive a message back that says the transaction has been approved,...

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Longitudinal Redundancy Check (LRC) Process

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