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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Use these links to pivot between the directory, a focused guide, and nearby related codes.

Hub

Guides

POS Terminal Error Codes: Payment Processing, Connectivity, and Device Health

Related Codes

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

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