---
id: OV-C4-EDGE-010
title: "Sync integrity preserved across app restart and force-close (no duplicates)"
product: mobile
module: offline-visitation
type: recovery
priority: P0
risk: critical
status: draft
automationStatus: planned
sourceRefs:
  tsd: PK144
  tsdSection: C4
  tsdScenario: C4.8
  prd: PK144
  jira: null
automationRef: null
lifecycleStatus: active
lifecycleReason: "AI-generated draft from PK144 TSD C4.8; pending QA review."
lastReviewedAt: null
reviewedBy: null
supersededBy: null
duplicateOf: null
blockedBy: null
preconditionRefs:
  - PRE-OV-gagal-kirim-has-items
tags:
  - mobile
  - offline-visitation
  - sync
  - edge-case
  - pk144
  - staging
---
## Objective
Verify sync state survives app interruption without producing duplicate backend records.

## Preconditions
- See [[PRE-OV-gagal-kirim-has-items]]

## Steps
1. Restart the app before sync
2. Force-close the app during a "Mengirim" item
3. Relaunch and observe recovery

## Expected Result
- Then after restart-before-sync the item remains in Gagal Kirim with status preserved
- And after force-close during Mengirim the system re-evaluates item state safely on relaunch, the item is NOT duplicated on backend, and it is either confirmed synced OR returned to a retryable status
- And sync recovery respects the Auto Sync preference (ON → resumes automatically when eligible; OFF → does not resume)
- And the backend does NOT create duplicate visitations on retry

## Source Traceability
- TSD: PK144
- Section: C4 - Sync Strategy
- Scenario: C4.8 - Sync integrity during app interruption
- Acceptance Criteria: M.23 AC1–AC4

## Evidence Required
- Backend record count before/after interruption; relaunch behavior recording.

## Notes / Gaps
- Testing Concern #18 (Critical): background auto-sync feasibility. #19 (Critical): idempotency key contract for retry safety.