# Optimizely: Major incident: Campaign user interface partially unavailable

**Summary:** Optimizely reported a major partial outage of Campaign’s graphical interfaces for managing campaigns and content, including the EMEA Region interface, affecting only some users. It started at 2026-07-17 16:59 UTC and was marked resolved at 2026-07-17 17:17 UTC; the computed duration was 17 min. The vendor identified the affected component and resolved the problem. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-17 16:59 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/lngvhhntp9h2](https://stspg.io/lngvhhntp9h2)
- [Company: Optimizely](https://rewindex.com/company/optimizely.md)
- Versions: before (none: first archived) → after incident\_version:252/lklc6j4k42k0@22943411a8d9
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Campaign user interface partially unavailable
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-17 16:59 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-17 17:17 UTC
```

**6. Added: Affected components**

```diff
+ Campaign (Omnichannel Marketing Solution) - EMEA Region - Campaign user interface, Campaign user interface
```

**7. Added: Update** (investigating) · 2026-07-17 16:59 UTC

```diff
+ We are currently investigating an event that is impacting the availability of the graphical user interfaces for managing campaigns and content.
```

**8. Added: Update** (resolved) · 2026-07-17 17:17 UTC

```diff
+ The affected component was identified and the problem was resolved at 19:06 CEST. Only a part of users was affected by this problem.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-17 16:59 UTC | Major incident: Campaign user interface partially unavailable (this change) | outage |

All Optimizely changes: [timeline](https://rewindex.com/company/optimizely/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._


---
Canonical: https://rewindex.com/change/i541c89caf21f59 · Markdown: https://rewindex.com/change/i541c89caf21f59.md · JSON: https://rewindex.com/api/v1/changes/i541c89caf21f59 · Generated 2026-10-18T05:16:02.213Z