409 list_limit_reached - NoResponse docs

{
  "type": "https://docs.noresponse.org/problems/list-limit-reached",
  "title": "List limit reached",
  "status": 409,
  "detail": "The list already holds 10,000 entries; delete one first.",
  "code": "list_limit_reached",
  "request_id": "5e8be3a91fde9499f7ce48ae66290895"
}

{
  "type": "https://docs.noresponse.org/problems/list-limit-reached",
  "title": "List limit reached",
  "status": 409,
  "detail": "The list already holds 10,000 entries; delete one first.",
  "code": "list_limit_reached",
  "request_id": "5e8be3a91fde9499f7ce48ae66290895"
}

HTTP 409 Not retryable

Why

The list of an environment holds at most 10,000 entries.

What to do

Delete entries that you no longer use, then add the entry again.

In the SDKs

The Node and Python SDKs raise ConflictError. The Go SDK returns *apierrors.ConflictError, which you match with errors.As.

{
  "type": "https://docs.noresponse.org/problems/list-limit-reached",
  "title": "List limit reached",
  "status": 409,
  "detail": "The list already holds 10,000 entries; delete one first.",
  "code": "list_limit_reached",
  "request_id": "5e8be3a91fde9499f7ce48ae66290895"
}

Every error has this shape. Errors and limits lists every code.