Plain experienced a minor incident on September 7, 2026 affecting app.plain.com and Sidekick, lasting 3h 46m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 07, 2026, 09:44 AM UTC
Status: Investigating We’re currently investigating an issue causing Sidekick to be unavailable. Sidekick features may not load or respond as expected during this time. Other parts of Plain are unaffected. We’ll post another update within 30 minutes or as soon as we have more information. Affected components Sidekick (Full outage)
- identified Sep 07, 2026, 10:38 AM UTC
Status: Identified We’ve identified a problem with our webhook processing pipeline that is preventing events from being handled correctly, which is in turn causing Sidekick to be unavailable. Customers may also see delays or failures in webhook delivery while this is ongoing. Our team is working on a fix, and we’ll post another update within 30 minutes or as soon as the situation changes. Affected components app.plain.com (Degraded performance) Sidekick (Full outage)
- investigating Sep 07, 2026, 10:46 AM UTC
Status: Investigating Sidekick has been restored and is working normally again. We’re still investigating whether other parts of Plain are affected. At this time, the only known remaining impact is delayed webhook delivery, where some events may take longer than usual to arrive. We’ll post another update within 30 minutes or as soon as we have more information. Affected components app.plain.com (Degraded performance) Sidekick (Operational)
- monitoring Sep 07, 2026, 11:01 AM UTC
Status: Monitoring We identified and resolved an issue where a high volume of internal events caused a processing backlog in our webhook delivery pipeline. As a side effect, some customers experienced unexpected automation behavior (including label changes) and delayed Sidekick responses during this window. We have applied a fix and are monitoring to confirm full recovery. No further action is needed on your end. Affected components app.plain.com (Operational) Sidekick (Operational)
- resolved Sep 07, 2026, 01:31 PM UTC
Status: Resolved This incident is now resolved. The webhook delivery backlog has fully cleared, Sidekick is operating normally, and webhook delivery has returned to normal latency. No further action is needed on your end. Thank you for your patience while we worked through this. Affected components Sidekick (Operational) app.plain.com (Operational)