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HTTP_STATUS_FAILED_DEPENDENCY
It usually appears in a multi-operation request such as PROPPATCH or a batch-style WebDAV update. The failed dependency is reported so the client can find the original error instead of treating 424 as the root cause.
Inspect the complete multistatus response in order and fix the first failing property or resource. Retrying only the dependent operation without correcting the predecessor will repeat the failure.
Operational meaning of HTTP 424 for HTTP_STATUS_FAILED_DEPENDENCY
HTTP 424 (HTTP_STATUS_FAILED_DEPENDENCY) is a client-error response. AllStat records its meaning as “424 Failed Dependency”. For HTTP_STATUS_FAILED_DEPENDENCY, interpret it with the request method, selected representation, response headers, and the specification or product that defines the code; the number alone does not prove that application work completed.
Client and server handling for HTTP_STATUS_FAILED_DEPENDENCY
- Treat HTTP_STATUS_FAILED_DEPENDENCY as a condition visible at the request boundary; inspect authentication, syntax, preconditions, routing, and resource state before retrying.
- For HTTP_STATUS_FAILED_DEPENDENCY, preserve the response body and challenge or retry-related headers because they often carry the actionable reason.
- For HTTP_STATUS_FAILED_DEPENDENCY, automatic retry is safe only when the method and status contract allow it and the request has been corrected.
For telemetry, record HTTP 424, method, authority, route template rather than secrets, response headers relevant to caching or retry, latency, upstream identity, and whether the response originated at the application or an intermediary.
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