WPN_E_PUSH_NOTIFICATION_INCAPABLE: meaning and diagnosis

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WPN_E_PUSH_NOTIFICATION_INCAPABLE: The application background task does not have the push notification capability.

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WPN_E_DUPLICATE_REGISTRATION	WPN_E_CLOUD_AUTH_UNAVAILABLE

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.

Microsoft documentation

Diagnostic discriminator: Inspect the background-task declaration and push-trigger capability for the package. This result means the application configuration cannot use the requested push path.

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