Outage in One Signal
Intermittent errors on /api/v1/notifications api
Resolved Minor
September 18, 2026 - Started 7 days ago
- Lasted 37 minutes
Incident Report
Summary AI Generated
OneSignal experienced a 37-minute minor incident where heavy load on a notification service caused intermittent errors on the `/api/v1/notifications` API, affecting a subset of customers. The root cause was identified as insufficient capacity on the overloaded service. The issue was resolved by scaling up capacity on the affected service, with a fix rolled out and stability restored within the incident window.
We have identified the root cause and are working towards a resolution. Heavy load on one of our notification services is causing intermittent errors when trying to create a notification. Not all customers are affected.
The team is working on adding more capacity to the affected service.
We will provide another update in 15 minutes.
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Latest Updates ( sorted recent to last )
IDENTIFIED
7 days ago - at 09/18/2026 01:13AM
A fix is rolling out now for the affected notifications services that are overloaded. Things should be stable within the next 10 minutes.
IDENTIFIED
7 days ago - at 09/18/2026 12:48AM
We have identified the root cause and are working towards a resolution. Heavy load on one of our notification services is causing intermittent errors when trying to create a notification. Not all customers are affected.
The team is working on adding more capacity to the affected service.
We will provide another update in 15 minutes.
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