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WPN_E_TOAST_NOTIFICATION_DROPPED
WPN_E_TOAST_NOTIFICATION_DROPPED is an HRESULT used by the Windows notification platform. It means that the platform accepted or received a toast notification but did not present it to the user.
What to check for WPN_E_TOAST_NOTIFICATION_DROPPED
- Check notification settings, focus modes, policy, app state, and platform diagnostics for suppression reasons.
- Do not retry aggressively or assume the toast was visible based only on the send operation.
- Use in-app state or a notification center where the product needs durable visibility.
Diagnostic interpretation
This result has the HRESULT value 0x803E0207. AllStat records the condition as “Toast Notification was dropped without being displayed to the user.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the wpn / toast / notification / dropped operation.
- check the documented return contract of the specific API because the same HRESULT can require different recovery in different interfaces.
Retry and recovery
” has changed.
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