> ## Documentation Index
> Fetch the complete documentation index at: https://omss.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ProviderCustomEventPayload

> Fired for provider-defined custom events via .

Fired for provider-defined custom events via `emitter.emit(action, data)`.

```typescript
type ProviderCustomEventPayload = BaseProviderHookPayload & { data: unknown }
```


## Related topics

- [OMSSHooks](/sdk-artifacts/types/OMSSHooks.md)
- [ProviderHooks](/sdk-artifacts/types/ProviderHooks.md)
- [HookRegistry](/sdk-artifacts/classes/HookRegistry.md)