HRESULT 0x803D0013 (WS_E_ENDPOINT_FAULT

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Description:

the Windows Web Services client received a fault message from the endpoint.

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WS_E_ENDPOINT_TOO_BUSY	WS_E_ENDPOINT_DISCONNECTED

WS_E_ENDPOINT_FAULT_RECEIVED

WS_E_ENDPOINT_FAULT_RECEIVED is a Windows Web Services API HRESULT. It means that the remote endpoint returned a service fault message instead of a normal response. The fault can describe a contract, authorization, validation, processing, or application-level problem.

What to check

Parse the documented fault code, subcode and safe detail fields from the received message.
Use correlation identifiers to match the fault with server-side logs and the original request.
Do not log secrets or raw untrusted fault content without redaction.

Microsoft documentation

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