--- set: 4 code: 423 title: Locked references: "Rails HTTP Status Symbol": ":locked" "Symfony HTTP Status Constant": "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'. --- * Source: [RFC4918 Section 11.3][1] [1]: