# RevenueCat: Major incident: Apple partial outage for sandbox StoreKit API

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-10-21 12:51 UTC · Detected: 2026-10-21 12:53 UTC
- [Source: https://stspg.io/c40dz83rm04m](https://stspg.io/c40dz83rm04m)
- [Company: RevenueCat](https://rewindex.com/company/revenuecat.md)
- Versions: before (none: first archived) → after incident\_version:205/d7z6s6r64bk6@4e66811142de
- Change 1 of 3 for this incident

Incident page (full timeline): [Apple partial outage for sandbox StoreKit API](https://rewindex.com/company/revenuecat/incidents/d7z6s6r64bk6.md)
## What changed

**1. Added: Title**

```diff
+ Apple partial outage for sandbox StoreKit API
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-10-21 12:51 UTC
```

**5. Added: Affected components**

```diff
+ Apple Sandbox Receipt Server, App Store Receipt Servers - Apple Sandbox Receipt Server
```

**6. Added: Update** (investigating) · 2026-10-21 12:51 UTC

```diff
+ We are seeing elevated errors when validating purchases made in Apple's sandbox environment, including TestFlight builds. Since about 06:00 UTC, most sandbox purchases and restores on iOS, macOS, and other Apple platforms are failing to validate, so test purchases may not unlock entitlements. Purchases made with real money in production apps are not affected.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-21 12:51 UTC | Major incident: Apple partial outage for sandbox StoreKit API (this change) | major |
| 2026-10-21 13:13 UTC | [Incident silently edited: Apple partial outage for App Store Server API - Sandbox](https://rewindex.com/change/r2b3a23f24a00e6.md) |  |
| 2026-10-21 16:13 UTC | [Incident updated: Apple partial outage for App Store Server API - Sandbox](https://rewindex.com/change/r935ecead17358f.md) |  |

Next: [change](https://rewindex.com/change/r2b3a23f24a00e6.md) · All RevenueCat changes: [timeline](https://rewindex.com/company/revenuecat/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i244d2e33eaf68c · Markdown: https://rewindex.com/change/i244d2e33eaf68c.md · JSON: https://rewindex.com/api/v1/changes/i244d2e33eaf68c · Generated 2026-10-22T04:25:16.005Z