POS Systems Error Code
Systems & Devices
POS Systems
00 | Approved
Industry
Systems & Devices
Canonical
/systems/pos-systems/error-codes/00/
Last Updated
Feb 27, 2026
Summary
The authorization was approved and the transaction can proceed.
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What This Code Means
Response code 00 is a standard approval response used in payment authorization flows. It indicates the issuer/network approved the request as submitted.
Where Users Usually See This Code
- POS terminal receipts and approval screens
- Payment gateway or processor logs
- Back office settlement reports
Why This Code Appears
- The card and account passed issuer checks
- The transaction parameters were acceptable
- Risk checks did not block the authorization
What Typically Happens Next
- The transaction is completed and may move to settlement
- A receipt is generated
What This Code Is Not
- It is not a guarantee of settlement (settlement can still fail later)
- It is not a refund confirmation
Troubleshooting Checklist
- □ No action required for approvals unless reconciliation shows a downstream issue
Notes And Edge Cases
Some systems use additional approvals for partial auth or offline approvals; always confirm with the processor logs.
Related Codes
8 links
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