HTTP 409 · append-conflict — ← all Webpath errors
Concurrent appends kept colliding under the retry limit.
How to recover. Wait a moment and retry the append.
Example response
{
"type": "https://muse.as/a/webpath/errors/append-conflict",
"title": "File is busy",
"status": 409,
"detail": "Wait a moment and retry the append."
}
This page documents the append-conflict error type returned in Webpath RFC 7807
application/problem+json responses. The machine-readable detail field carries a recovery
hint you can show a user verbatim — see the Spec §12 and
API Reference.