# Courier: Major incident: Message Send Delays for Legacy Segment to Send Message Integration

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2022-07-25 20:45 UTC · Detected: 2026-10-19 18:33 UTC
- [Source: https://stspg.io/8kjztpz4581q](https://stspg.io/8kjztpz4581q)
- [Company: Courier](https://rewindex.com/company/courier.md)
- Versions: before (none: first archived) → after incident\_version:730/znk4w44dr5y2@c9f08b1b2ae8
- Change 1 of 1 for this incident

Incident page (full timeline): [Message Send Delays for Legacy Segment to Send Message Integration](https://rewindex.com/company/courier/incidents/znk4w44dr5y2.md)
## What changed

**1. Added: Title**

```diff
+ Message Send Delays for Legacy Segment to Send Message Integration
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2022-07-25 20:45 UTC
```

**5. Added: Resolved time**

```diff
+ 2022-07-26 05:16 UTC
```

**6. Added: Affected components**

```diff
+ Integrations: Inbound to Courier - Segment Destinations
```

**7. Added: Update** (investigating) · 2022-07-25 20:45 UTC

```diff
+ We are currently investigating an issue where Send messages triggered by the Segment Event track/ integration are not being sent. Customers using the Segment Event track/ integration with Automations appear not to be impacted.
```

**8. Added: Update** (identified) · 2022-07-25 22:00 UTC

```diff
+ We have identified the issue and are preparing a release that will resolve it for new incoming Segment events. We are working to identify historical segment events that should have triggered sends that were impacted.
```

**9. Added: Update** (identified) · 2022-07-25 23:00 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**10. Added: Update** (monitoring) · 2022-07-25 23:15 UTC

```diff
+ We have released a fix for new incoming Segment events. We are monitoring to confirm send volume for Segment to Send returns to normal.
```

**11. Added: Update** (monitoring) · 2022-07-25 23:42 UTC

```diff
+ We have confirmed our deployed fix has resolved the issue for new incoming events. We are continue to work on resolution for historical segment events that did not trigger message sends.
```

**12. Added: Update** (resolved) · 2022-07-26 05:16 UTC

```diff
+ We have finished measuring the impact and will be reaching out to affected customers.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2022-07-25 20:45 UTC | Major incident: Message Send Delays for Legacy Segment to Send Message Integration (this change) | major |

All Courier changes: [timeline](https://rewindex.com/company/courier/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/iaee3a38693f5bf · Markdown: https://rewindex.com/change/iaee3a38693f5bf.md · JSON: https://rewindex.com/api/v1/changes/iaee3a38693f5bf · Generated 2026-10-20T00:48:35.182Z