OneSignal outage: Apple push notifications failing in about 3% of cases

1. resolvedAug 4, 2026, 19:24 UTC

   The issue has been resolved. All impacted systems are now operating normally.

2. monitoringAug 4, 2026, 18:46 UTC

   We have applied a mitigation that should resolve the impact. We are monitoring to confirm effectiveness. We will provide another update in 20 minutes.

3. identifiedAug 4, 2026, 18:45 UTC

   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.

4. investigatingAug 4, 2026, 17:20 UTC

   **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

What APIStatus.watch saw

Our 5-minute checks didn't record a change in OneSignal's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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How often does OneSignal have incidents?

OneSignal reported 9 incidents in the last 90 days, 3 of them major or critical. A typical incident lasted 1h 29m. See OneSignal's uptime and incident history