423
MediumWeb Server
Locked
What 423 Means
The 423 error on the HTTP Status-Codes indicates locked. This typically occurs due to file locked by webdav.
The 423 status originates from the WebDAV extension to HTTP, indicating the requested resource is currently locked against modification.
Technical Background
Pessimistic locking mechanisms use 423 to prevent race conditions during collaborative editing or heavy operational writes.
Any modifying request (like PUT, POST, or DELETE) will fail with 423 until the lock is released or strictly expires.
Common Causes
- File locked by WebDAV
- Database row lock in progress
- Resource undergoing maintenance
Typical Scenarios
- A team member leaves a network document open, locking it.
- A system process is actively writing to a file, temporarily locking external write access.
What to Know
Wait for the ongoing operation holding the lock to finish, or administratively release the lock if it became orphaned.
Frequently Asked Questions
Common questions about HTTP 423 error
Another application or user currently holds a lock on the file or record you are trying to edit.