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Salesforce: Performance Degradation: Core Service

Affected components: Core Service4 instances

Timeline of updates

1. investigating2026-06-08 23:19 UTC

   We’re investigating the cause of the issue. We will provide an update in 30 minutes or sooner if we have more information.

2. update2026-06-09 01:12 UTC

   We are investigating a performance degradation on multiple instances, where users are experiencing high Average Page Times (APTs) when using managed packages on Salesforce services. We believe this may be due to a recent change and are investigating to identify the root cause and take remediation actions. We will provide an update in 30 minutes, or as soon as new information becomes available.

3. update2026-06-09 02:29 UTC

   We're continuing to investigate the slow page load times customers are experiencing. We’ve identified that the issue is being driven by a high volume of automated requests targeting a specific page used for package installations. We've applied rate limits across the affected instances, and additional traffic mitigation actions are underway. We'll provide an update in 60 minutes or sooner if additional information becomes available.

4. update2026-06-09 02:29 UTC

   We believe that we've identified the root cause of the slow page load times customers are experiencing when using managed packages on Core services. Multiple orgs running package installations simultaneously are causing the database to become overloaded, resulting in response times well above normal thresholds. We've applied a throttle to the affected instances to limit the number of concurrent package installations and reduce the load on the database. We'll provide an update in 30 minutes or sooner if additional information becomes available.

5. update2026-06-09 03:26 UTC

   The slow page load times experienced by customers have ‌subsided as of 02:35 UTC. Service performance stabilized following a series of measures, including the implementation of rate limiting across the impacted instances and additional traffic management actions. We apologize for how you and your business may have been affected by this incident.

Impact, status and times are the vendor’s own, as last archived. View on status.salesforce.com (opens in new tab). Salesforce profile · Recent Salesforce incidents · Markdown · JSON