---
title: "Refund / Reconciliation Mismatch Troubleshooting"
description: "Booking cancellation ile payment refund state'i ayrıştığında amount, currency, partial refund ve provider/payment evidence zincirini teşhis edin."
slug: "refund-reconciliation-mismatch-troubleshooting"
translationKey: "troubleshooting-refund-reconciliation-mismatch"
locale: "tr"
type: "troubleshooting"
category: "troubleshooting"
tags: ["refund","reconciliation","payment","cancellation","mismatch"]
publishedAt: "2026-09-27"
updatedAt: "2026-09-27"
reviewedAt: "2026-09-27"
technicalVerifiedAt: "2026-09-27"
codeExampleStatus: "illustrative"
---

Booking cancellation ile payment refund farklı lifecycle'lardır. Cancellation başarılı olsa bile refund incomplete, partial veya UNKNOWN kalabilir.

## Symptom

- booking CANCELLED ama refund görünmüyor,
- refunded amount beklenenden farklı,
- partial refund iki sistemde farklı,
- payment provider REFUNDED gösteriyor ama local ledger stale.

## Possible causes

- refund request başarısız/UNKNOWN,
- cancellation penalty,
- partial refund,
- FX farkı,
- settlement sonrası refund gecikmesi,
- duplicate refund protection,
- local ledger update başarısız.

## Diagnosis

1. Original charge/capture amount'ı bulun.
2. Cancellation policy ve penalty'yi doğrulayın.
3. Refund attempt ID ve provider status çekin.
4. Partial refund history'yi toplayın.
5. Currency/original-settlement amount'ı ayırın.
6. Local ledger ile payment provider toplamlarını reconcile edin.

## Recovery

Eksik refund için yeni request göndermeden önce mevcut attempt outcome'unu doğrulayın. Provider REFUNDED ise local ledger/state repair yapın; gerçek delta varsa policy'ye göre remaining refund veya ops escalation uygulayın.

## Prevention

- separate refund state,
- immutable payment ledger,
- operation-scoped idempotency,
- amount/currency breakdown,
- scheduled reconciliation,
- manual threshold.

## Observability

- cancelled-without-refund,
- refund age,
- expected-vs-actual refund delta,
- partial refund count,
- refund UNKNOWN,
- ledger/provider drift.