# Salesforce: Major incident: Service Disruption: Core Service

> Salesforce reported a major Core Service disruption affecting 3 instances starting 2026-10-23 01:25 UTC; affected users could not log in to their org and saw an error message. It remained open when archived, 1 h 26 min at the last update; Salesforce was restarting servers in stages to restore access

Canonical: https://rewindex.com/change/i29d0578e9bc855
Last updated: 2026-10-23T03:03:00Z

**Summary:** Salesforce reported a major Core Service disruption affecting 3 instances starting 2026-10-23 01:25 UTC; affected users could not log in to their org and saw an error message. It remained open when archived, 1 h 26 min at the last update; Salesforce was restarting servers in stages to restore access and investigating the cause. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-23 01:25 UTC · Detected: 2026-10-23 03:03 UTC
- [Source: https://status.salesforce.com/incidents/20004512](https://status.salesforce.com/incidents/20004512)
- [Company: Salesforce](https://rewindex.com/company/salesforce.md)
- Versions: before (none: first archived) → after incident\_version:130/20004512@d9fcef2f7a16
- Change 1 of 13 for this incident

Incident page (full timeline): [Service Disruption: Core Service](https://rewindex.com/company/salesforce/incidents/20004512.md)
## What changed

**1. Added: Title**

```diff
+ Service Disruption: Core Service
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ investigating
```

**4. Added: Start time**

```diff
+ 2026-10-23 01:25 UTC
```

**5. Added: Affected components**

```diff
+ 3 instances, Core Service
```

**6. Added: Update** (update) · 2026-10-23 02:51 UTC

```diff
+ We've confirmed that affected users can't log in to their org and see an error message. We began restarting our servers in stages to restore access. We're continuing to investigate the cause. We'll provide an update in 30 minutes, or sooner if additional information becomes available.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-23 01:25 UTC | Major incident: Service Disruption: Core Service (this change) | outage |
| 2026-10-23 03:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r12e0a2dec31f2f.md) | Normal progress |
| 2026-10-23 04:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/ra5337d8db1bc32.md) | Normal progress |
| 2026-10-23 04:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r5cf0f61bf896d8.md) | Normal progress |
| 2026-10-23 05:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/rf4055343b863c1.md) | Normal progress |
| 2026-10-23 05:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r60d815bd091348.md) | Normal progress |
| 2026-10-23 06:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/rf5dc776c7620c8.md) | Rewrite: root cause removed |
| 2026-10-23 06:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r975d44b9febe31.md) | Rewrite: impact downgraded |
| 2026-10-23 07:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r2c3d629b3f9827.md) | Rewrite: impact downgraded |
| 2026-10-23 07:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/rb80c6227328488.md) | Rewrite: impact downgraded |
| 2026-10-23 08:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r01a47d9d73a0ab.md) | minor edit |
| 2026-10-23 08:33 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/r2be855f2e03d10.md) | Rewrite: impact downgraded |
| 2026-10-23 09:03 UTC | [Incident updated: Service Disruption: Core Service](https://rewindex.com/change/refb7c8988190ba.md) | Normal progress |

Next: [change](https://rewindex.com/change/r12e0a2dec31f2f.md) · All Salesforce changes: [timeline](https://rewindex.com/company/salesforce/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._

## Cite this

Major incident: Service Disruption: Core Service on Salesforce’s status page, changed 2026-10-23 01:25 UTC (change 1 of 13).

- Canonical URL: https://rewindex.com/change/i29d0578e9bc855
- Citation: Salesforce, “Major incident: Service Disruption: Core Service” (2026-10-23 01:25 UTC). Archived by Rewindex: https://rewindex.com/change/i29d0578e9bc855 (CC BY 4.0).
- Markdown link: `[Salesforce: Major incident: Service Disruption: Core Service (2026-10-23)](https://rewindex.com/change/i29d0578e9bc855)`


---
Canonical: https://rewindex.com/change/i29d0578e9bc855 · Markdown: https://rewindex.com/change/i29d0578e9bc855.md · JSON: https://rewindex.com/api/v1/changes/i29d0578e9bc855 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:32:45.841Z