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423

HTTP 423 Locked: meaning and next diagnostic branch

Verified with sources2 sourcesReviewed Aug 23, 2026
Technician coming? See what they must show you

Risk level

Low

Usually safe to check without specialist tools.

Urgency

Medium

Quick answer

HTTP 423 Locked means: The source or destination WebDAV resource is locked. It identifies a protocol result, not the failed component. Preserve one request/response pair and discriminate the failing resource inside the multi-status body, lock token, dependency order, storage quota and binding graph.

Safety first

Stop and check this first

  • Do not break locks, delete collections or increase quota until ownership and the failing member are proved.

Safe checks you can perform

  • Freeze one complete failing exchange
  • Change one variable and repeat once
  • Stop before retries hide the first failure

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Trace-led handoff for HTTP 423

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Trace-led handoff for HTTP 423

    What they doCorrelate the per-resource DAV status, lock discovery/token, dependency graph, bind traversal and server quota before changing storage or locks.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Freeze one complete failing exchange

    No special tools

    Record HTTP 423, timestamp, method, scheme/host/path without secrets, response headers and body, request ID, client, deployment version and every proxy/CDN/gateway hop. Redact credentials and personal data.

    Do not break locks, delete collections or increase quota until ownership and the failing member are proved.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

  2. Change one variable and repeat once

    No special tools

    Parse the complete DAV response and isolate one resource. Verify its lock token, predecessor result and quota before retrying only that safe operation.

    Do not break locks, delete collections or increase quota until ownership and the failing member are proved.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

  3. Stop before retries hide the first failure

    No special tools

    The failing member, lock owner or dependency owns the branch. Do not treat the outer 207 as success or failure for every resource.

    Do not break locks, delete collections or increase quota until ownership and the failing member are proved.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Software and digital services
Brand
HTTP
Product type
HTTP service

Known code variants

  • 423 Bloccato
  • 423 Bloqueado
  • 423 Gesperrt
  • 423 Locked
  • 423 Verrouillé
  • Bosch 423 bici elettrica
  • Bosch 423 bicicleta eléctrica
  • Bosch 423 E-Bike
  • Bosch 423 eBike
  • Bosch 423 vélo électrique
  • Bosch eBike code 423
  • Bosch eBike error 423
  • Bosch eBike Fehler 423
  • Bosch eBike Fehlercode 423
  • code Bosch eBike 423
  • codice Bosch eBike 423
  • código Bosch eBike 423
  • erreur Bosch eBike 423
  • error Bosch eBike 423
  • errore Bosch eBike 423
  • HTTP 423
  • HTTP status 423

What it means

Registered meaning: The source or destination WebDAV resource is locked. The next decision boundary is the failing resource inside the multi-status body, lock token, dependency order, storage quota and binding graph. Before changing infrastructure or buying support, require: Correlate the per-resource DAV status, lock discovery/token, dependency graph, bind traversal and server quota before changing storage or locks.

Warnings and stop conditions

  • Lowsource verified

    Do not break locks, delete collections or increase quota until ownership and the failing member are proved.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

Symptoms and causes

Probable causes · in order

  • What the registered HTTP status establishesConfirmed

    IANA registers 423 as Locked. The controlling specification establishes: The source or destination WebDAV resource is locked.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

  • The evidence that changes the next branchPossible

    Capture the failing resource inside the multi-status body, lock token, dependency order, storage quota and binding graph. The failing member, lock owner or dependency owns the branch. Do not treat the outer 207 as success or failure for every resource.

    Evidence: IANA HTTP Status Code Registry · RFC 4918 - WebDAV

Virtual technician

Does 423 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Start diagnosis

Sources and technical references

  1. 1

    IANA HTTP Status Code Registry

    Internet Assigned Numbers Authority · 2025 · standard

  2. 2

    RFC 4918 - WebDAV

    IETF / RFC Editor · 2007 · standard

Sources: IANA HTTP Status Code Registry · RFC 4918 - WebDAVreviewed 2026-08-23 · verified

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