lookup> 409

409 ·Conflict

The request conflicts with the current state of the target resource.

Client ErrorRFC7231#6.5.8
Status409
PhraseConflict
TypeClient Error
SpecificationRFC7231#6.5.8

What does HTTP 409 mean?

The request conflicts with the current state of the target resource.

It belongs to the 4xx Client Error class of responses, defined in RFC7231#6.5.8.

Browse all codes in this class: 4xx Client Error

How to fix HTTP 409

Fetch the current resource state and re-apply changes on top of it.

  • Concurrent edit conflict
  • Duplicate resource creation
  • State mismatch

Website visitors

Double-check the URL, return to the homepage and search again, or retry later.

Developers

Fetch the current resource state and re-apply changes on top of it.

Server administrators

Review access logs and permission rules for the affected path, and confirm routing and security policies.

Is HTTP 409 cacheable?

409 belongs to the 4xx Client Error class and is generally not cached for long; behavior is controlled by Cache-Control.

What does the 4xx class mean?

4xx Client Error: The request conflicts with the current state of the target resource.

4xx responses

Related status codes

Related headers

Related methods

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