What does HRESULT 0x80190196 (HTTP_E_STATUS_NONE_ACCEPTABLE) mean?

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Description:

The server returned HTTP 406 Not Acceptable because no acceptable representation could be selected.

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HTTP_E_STATUS_BAD_METHOD	HTTP_E_STATUS_PROXY_AUTH_REQ

HTTP_E_STATUS_NONE_ACCEPTABLE

HTTP_E_STATUS_NONE_ACCEPTABLE maps to HTTP 406 Not Acceptable. The server could not produce a representation acceptable under the proactive content-negotiation headers sent by the client.

What to check for HTTP_E_STATUS_NONE_ACCEPTABLE

Review Accept, Accept-Language, Accept-Encoding, and any custom negotiation headers.
Confirm that the client permits a media type and character set the endpoint actually serves.
Check whether an API gateway rewrites or narrows the request headers before they reach the application.

RFC 9110: 406 Not Acceptable

Diagnostic interpretation

This result has the HRESULT value 0x80190196. AllStat records the condition as “Not acceptable (406).”.

Evidence to capture

Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the none / acceptable 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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