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FAQ » History » Revision 12

Revision 11 (chin-yeh, 02/24/2012 09:14 AM) → Revision 12/13 (chin-yeh, 02/24/2012 09:15 AM)

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 h1. FAQ 

 h2. General 

 h3. How to simulate a CVV matched payment 

 enter *999* in CVV field 

 h3. How to simulate a declined payment 

 * enter an amount less than *1.00* 
 * enter a invalid credit card number 

 h3. How NMI checks for duplicate transaction 

 A transaction is treated as duplicate when: 
 * submit same settlement amount using the same credit card within *20 minutes* 

 h3. No order ID returned 

 It happens when the result code is *3* or *300*, and any other _un-listed_ response code (e.g. 0) 

 h3. the card number did not display in the transaction report 

 It only happens when the submitted card number is more than *19 digit* 

 h3. Why the transaction is in Pending Settlement _Pending Settlement_ state and never change to Settle? _Settle_? 

 All of the approved transactions will “always” say Pending Settlement. It’s a difference between US & EU processing banks. In the US, all transactions are “settled” at the end of the day. In the EU though, transactions aren’t really “settled” via a batch. The gateway was originally designed for US merchants, but has expanded into the EU.