What does HTTP 423 mean?
The resource is locked (WebDAV).
Common causes and when you see it
Editing a resource that another user holds a lock on.
How to fix or handle it
Wait or release the lock.
Test it yourself
Send a request with the online API tester, inspect the response with the HTTP header checker, or host an endpoint that returns 423 with the mock API generator to see how your app reacts.
HTTP 423 questions
The resource is locked (WebDAV).
Editing a resource that another user holds a lock on.
Wait or release the lock.