# Clerk: Major incident: SMS Delivery Issues

> Major incident: SMS Delivery Issues. Detected 2026-10-29 by Rewindex: what changed on Clerk’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/ie99dd01f0da2d6
Last updated: 2026-10-29T17:53:06Z

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-10-29 17:40 UTC · Detected: 2026-10-29 17:53 UTC
- [Source: https://status.clerk.com/incidents/01M64BZ539EBV61Y908QHE84C4](https://status.clerk.com/incidents/01M64BZ539EBV61Y908QHE84C4)
- [Company: Clerk](https://rewindex.com/company/clerk.md)
- Versions: before (none: first archived) → after incident\_version:305/01M64BZ539EBV61Y908QHE84C4@88fce015ea83
- Change 1 of 4 for this incident

Incident page (full timeline): [SMS Delivery Issues](https://rewindex.com/company/clerk/incidents/01M64BZ539EBV61Y908QHE84C4.md)
## What changed

**1. Added: Title**

```diff
+ SMS Delivery Issues
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-10-29 17:40 UTC
```

**5. Added: Update** (investigating) · 2026-10-29 17:40 UTC

```diff
+ We’re investigating SMS delivery issues affecting some users. Verification codes may be delayed or fail to arrive.
```

**6. Added: Update** (investigating) · 2026-10-29 17:46 UTC

```diff
+ We’re investigating SMS delivery issues with an upstream SMS provider.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-29 17:40 UTC | Major incident: SMS Delivery Issues (this change) | major |
| 2026-10-29 18:03 UTC | [Incident updated: SMS Delivery Issues](https://rewindex.com/change/r113b487d2e42a3.md) |  |
| 2026-10-29 18:13 UTC | [Incident updated: SMS Delivery Issues](https://rewindex.com/change/r5e65068cb4cd86.md) |  |
| 2026-10-29 18:23 UTC | [Incident updated: SMS Delivery Issues](https://rewindex.com/change/r6293d58d50149d.md) |  |

Next: [change](https://rewindex.com/change/r113b487d2e42a3.md) · All Clerk changes: [timeline](https://rewindex.com/company/clerk/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/ie99dd01f0da2d6 · Markdown: https://rewindex.com/change/ie99dd01f0da2d6.md · JSON: https://rewindex.com/api/v1/changes/ie99dd01f0da2d6 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-30T00:03:16.904Z