423.md

set	code	title	references
4	423	Locked	Rails HTTP Status Symbol Symfony HTTP Status Constant :locked Response::HTTP_LOCKED

The source or destination resource of a method is locked.

This response SHOULD contain an appropriate precondition or postcondition code, such as 'lock-token-submitted' or 'no-conflicting-lock'.

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• Source: RFC4918 Section 11.3