HTTP 500 (Server Error): meaning and handling

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: HTTP 500 is a generic server-side failure that prevented the request from being fulfilled.

Could be also:
Constant	Type	OS
ERROR_USER_PROFILE_LOAD	Win32 error	Windows

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HTTP_STATUS_CLIENT_CLOSED_REQUEST	HTTP_STATUS_NOT_SUPPORTED

HTTP_STATUS_SERVER_ERROR

The status intentionally does not identify the root cause. It can arise from unhandled application exceptions, configuration errors, failed dependencies, or a response that the server could not complete.

Correlate the request with server, proxy, and dependency logs using a request ID and timestamp. For clients, retry only when the operation is safe and the service documents retry behavior.

A 500 is intentionally broad. Use the server-side request or correlation identifier to locate the application exception, failed dependency, or internal invariant that produced it. Client-side parameter changes are justified only when the application reports a specific defect; otherwise the root evidence is normally in server logs and traces.

RFC 9110: HTTP Semantics

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