Basic troubleshooting
Common terminal error messages
Below is a list of decline responses you may come across while operating your terminal. If you are
unable to resolve an issue or encounter an issue or decline response not listed below, please contact
the CommBank 24 hour Merchant Helpdesk on 1800 230 177.
Response Code Description Next steps
00, 08, 09, 11, Y1 Approved No further action required
01, 98, Q5, S1 Decline • Restart terminal
• Retry transaction
• If issue persists accept another form of payment
03, 13, 58, 82, 91,
Z8, R1, Z7, Z6
Decline Contact Merchant Helpdesk
04-06, 12, 14, 30,
31, 33, 35-44,
51-54, 56, 57,
59- 64, 66, 68,
75, 92-95, 97, Z1,
Z4
Decline Accept another form of payment
19, 96 Decline Retry the payment or accept another form of payment
55 Decline: Invalid PIN Re-enter PIN or accept another form of payment
Y3, Z3 Oine Approved
• Switch to 4G/3G or Wi-Fi
• Retry the transaction
• Call the Merchant Helpdesk if issue persists
34 Commonwealth Bank of Australia | Smart User Guide