# Salesforce: Intermittent Login Errors: Core Service

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-07-01 01:00 UTC · Resolved: 2026-07-06 23:35 UTC · Duration: 6 d
- Updates: 4 · Affected components: Core Service, 90 instances
- [Vendor status page: https://status.salesforce.com/incidents/20004227](https://status.salesforce.com/incidents/20004227)
- [Company: Salesforce](https://rewindex.com/company/salesforce.md)

## Timeline of updates

- **update** 2026-07-06 19:33 UTC: We have identified a recent deployment as the trigger for this issue and are actively rolling  it back as part of our mitigation efforts to restore services. We'll provide an update in 60 minutes or sooner if additional information becomes available.
- **update** 2026-07-06 20:39 UTC: The rollback is in progress. We're resolving configuration blocks affecting a portion of the remaining instances and continue to monitor for service restoration. We'll provide an update in 90 minutes or sooner if additional information becomes available.
- **update** 2026-07-06 22:13 UTC: The rollback is continuing to progress.  We'll provide another update upon completion of the rollback, or sooner if additional information becomes available.
- **update** 2026-07-07 00:04 UTC: As of 23:35 UTC, July 3, 2026, we have completed the rollback across all impacted instances and validated remediation efforts. We apologize for how this incident affected you and your business. We will undertake a full investigation of the incident, establishing the underlying cause, and preventative action to avoid a repeat in the future.


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Canonical: https://rewindex.com/company/salesforce/incidents/20004227 · Markdown: https://rewindex.com/company/salesforce/incidents/20004227.md · JSON: https://rewindex.com/api/v1/companies/salesforce/incidents/20004227 · Generated 2026-10-18T10:29:33.224Z