POS Transaction Analyzer User and Installation Guide, SST Version 1.2

Appendix E 158
Appendix E
Reversal Codes
This section lists the Reversal Codes along with their description.
Reversal Code Description
00 Reason unknown
01 Time out
02 Command reject
03 Destination not available
08 Transaction cancelled
10 Hardware error
12 Original amount incorrect
14 Suspicious reversal override
15 Misdispense reversal override
16 Duplicate transaction
17 Reconciliation error
18 Reserved
19 System Error
20 Suspect reversal
21 Message authentication code (MAC) failure
22 MAC key synchronization error
23 Message replay error
24 Invalid MAC