Salesforce: Service Disruption: Core Service
Affected components: Core Service4 instances
Timeline of updates
- update
We're aware of an issue impacting multiple Salesforce instances. Since approximately 20:59 UTC, customers on affected instances may have been unable to log in or access their services. We've engaged our third-party partners to assist in the investigation. We'll provide an update in 30 minutes or sooner if additional information becomes available.
- update
We've determined that the issue is not due to a third-party service disruption. We're now investigating recent changes that may be related, and we're working to find the best path to resolution.
- update
As a precaution, we've started reverting a recent change to return it to its previous working state, and we're investigating other possible causes.
- update
We're still reverting the recent change we identified, and we're continuing to investigate other possible causes.
- update
We're still reverting the recent change, and we're now investigating our network infrastructure.
- update
We're making progress on rolling back the recent change, and we're also reviewing other recent changes that may be related.
- update
We have completed a rollback of the recent network configuration change in a lower environment and are working through the remaining validation steps before applying the update to production.
We'll continue to provide updates as our investigation progresses. - update
Investigations have highlighted that the impact radius is broader than initially understood. We have updated the posting to reflect the additional instances experiencing impact, and customers in these instances will receive communications related to this incident going forward.
- update
Once we successfully completed the validation steps in the lower environment, and confirmed connectivity was restored. We applied the same fix to the production environment and confirmed customers on affected instances can now log in and access their services. This issue is now resolved.
We apologize for how you and your business may have been affected by this incident. We will thoroughly investigate the incident, confirming the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.
Changes Rewindex caught on this incident
- Major incident: Service Disruption: Core Service
- Incident updated: Service Disruption: Core Service
- Incident updated: Service Disruption: Core Service
- Incident updated: Service Disruption: Core Service
- Incident updated: Service Disruption: Core Service
- Incident updated: Service Disruption: Core Service
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves these records existed by then and have not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-27 checkpoint, timestamped by DigiCert on . Record hash
b32f7e77361a52d2…Version 2 captured
In the 2026-10-27 checkpoint, timestamped by DigiCert on . Record hash
a52955dd88be9d2a…Version 3 captured
In the 2026-10-27 checkpoint, timestamped by DigiCert on . Record hash
d84989c95b32b547…
Rewindex captured a newer version after the last checkpoint; the next run () commits it.
Impact, status and times are the vendor’s own, as last archived. View on status.salesforce.com (opens in new tab).