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WPN_E_PUSH_NOTIFICATION_INCAPABLE
WPN_E_PUSH_NOTIFICATION_INCAPABLE is an HRESULT used by the Windows notification platform. It means that the background task configuration does not permit the requested push-notification trigger or processing path.
What to check for WPN_E_PUSH_NOTIFICATION_INCAPABLE
- Check the package manifest, background-task registration, and trigger configuration.
- Verify that the installed app version has the declared capability and is registered correctly.
- Keep background notification processing minimal and resilient to activation constraints.
Diagnostic interpretation
This result has the HRESULT value 0x803E0119. AllStat records the condition as “The application background task does not have the push notification capability.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the wpn / push / notification / incapable operation.
- compare the failing machine with a working one at the same configuration boundary: component version, policy, registration, identity, and target resource.
Retry and recovery
Before repeating the call, correct the state that produced WPN_E_PUSH_NOTIFICATION_INCAPABLE. Verify the repair with the same inputs and observation points rather than with a broader reset.
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