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WPN_E_NOTIFICATION_ID_MATCHED
WPN_E_NOTIFICATION_ID_MATCHED is an HRESULT used by the Windows notification platform. It means that the notification identifier used as a filter matches a notification record known to the platform.
What to check
- Treat the result according to the API operation that returned it; it can describe a match rather than a delivery failure.
- Verify the exact notification ID and filter semantics used by the caller.
- Do not infer that the user saw the notification solely from an identifier match.
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