MiniPOS APQT / PrintPOS APW3 - Error Codes

In messages from the server, this represents the response code from the authorizer. The following action codes are generated by TermApp.ISO:

300 File action successful
301 File action unsupported
302 Unable to locate record on file
306 Not successful 307 Format error
309 Unknown file
500 Reconciled, in balance;
501 Reconciled, out of balance;
503 Totals not available
504 Not reconciled, totals provided;
800 Network administration action successful
904 Format error;
905 Acquirer not supported (used if invalid terminal or merchant number);
915 Reconciliation cutover or check point error (used for invalid batch number) ;
916 MAC validation failure
919 Key synchronization error
950 Violation of business arrangement (invalid action code in advice);
940 Terminal Interaction Required In messages from the terminal, the following values are to be used: 000 Completed as authorized
911 Transaction timed out Any 3 digit value not starting with 0 Not completed as authorized In the case of a PIN translation failure the following value is used:
126 Invalid PIN Block If a master/session key is used the following response code can be encountered:
128 PIN key sync error