# Salesforce: Service Disruption: Core Service

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2026-03-16 15:53 UTC · Resolved: 2026-03-17 06:34 UTC · Duration: 15 h
- Updates: 1 · Affected components: Core Service, 495 instances
- [Vendor status page: https://status.salesforce.com/incidents/20003823](https://status.salesforce.com/incidents/20003823)
- [Company: Salesforce](https://rewindex.com/company/salesforce.md)

## Timeline of updates

- **update** 2026-03-17 08:26 UTC: At 15:53 UTC, on March 16, 2026,  we noted a service disruption causing a subset of customers to be unable to log into their environments when attempting to access their services.  Customers were out of impact at 06:34 UTC, on March 17, 2026, following the successful rollback of the change that was identified as the trigger for the disruption.  The original Trust Message posting for this issue can be found here: https://status.salesforce.com/incidents/20003819.   We will perform a full investigation of the incident, confirming the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.We apologize for how you and your business may have been affected by this incident.

## Rewindex changes for this incident

- 2026-03-16 15:53 UTC: [Critical incident: Service Disruption: Core Service](https://rewindex.com/change/id29ff7fa28f9e9.md)


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Canonical: https://rewindex.com/company/salesforce/incidents/20003823 · Markdown: https://rewindex.com/company/salesforce/incidents/20003823.md · JSON: https://rewindex.com/api/v1/companies/salesforce/incidents/20003823 · Generated 2026-10-18T11:26:54.509Z