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OneSignal: Apple push notifications failing in about 3% of cases
OneSignal reported a major incident causing about 3% of Apple push notifications to fail, from 2026-08-04 17:20 UTC to 2026-08-04 19:24 UTC (2 h 4 min). The vendor attributed it to a slight change in how Apple's push notification connections work, applied a mitigation, and confirmed normal operation.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: Push
Timeline of updates
- investigating
What’s happening: Apple push notifications are failing in about 3% of cases. "Unknown delivery error" or "APNS failed to provide a response" error responses may be seen. Who’s affected: • Customers using Apple Push Notifications Current Status: We are investigating the issue and will provide an update in 20
- identified
We have identified the root cause and are working towards a resolution. There was a slight change in how Apple's push notification connections work. We will provide another update in 20 minutes.
- monitoring
We have applied a mitigation that should resolve the impact. We are monitoring to confirm effectiveness. We will provide another update in 20 minutes.
- resolved
The issue has been resolved. All impacted systems are now operating normally.
Rewindex changes for this incident
- Major incident: Apple push notifications failing in about 3% of cases 2026-08-04 17:20 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