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OneSignal: Subscription API - Creation Failures
OneSignal’s Subscription API had a major outage preventing all customers from creating new subscriptions from 2026-09-22 21:05 UTC to 2026-09-22 21:30 UTC, lasting 25 min. A mitigation was applied at 21:19 UTC, and OneSignal confirmed all impacted systems were operating normally at resolution.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: APIs & SDK Endpoints
Timeline of updates
- investigating
What’s happening: Customers are unable to create new subscriptions Who’s affected: All customers trying to create new subscriptions Current Status: We are investigating the issue
- monitoring
We have applied a mitigation that should resolve the impact. We are monitoring to confirm effectiveness.
- resolved
The issue has been resolved. All impacted systems are now operating normally.
Rewindex changes for this incident
- Major incident: Subscription API - Creation Failures 2026-09-22 21:05 UTC
Impact, status and times are the vendor’s own, as last archived. View on status.onesignal.com (opens in new tab). OneSignal profile · Recent OneSignal incidents · Markdown · JSON