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job_not_resumable

409 Conflict   This job cannot be resumed.

When you get it

This job cannot be resumed. It is always answered with HTTP 409 - one code means one status, so a client may key its handling on either.

Fields it carries

Inside each errors[] entry, beside pointer:

state

The lifecycle state the resource is in, which is why the operation was refused.

reason

The machine-readable sub-case, when one code covers several. Branch on it.

A field is omitted when the server genuinely does not know it - an absent member is never the same as an empty one.

How to fix it

The request conflicts with the resource's current state. Re-read the resource and decide, rather than retrying blindly.

Shape

{
  "type":   "https://api2.host-tracker.com/problems/job-not-resumable",
  "title":  "This job cannot be resumed.",
  "status": 409,
  "code":   "job_not_resumable",
  "errors": [
    { "state": …, "reason": … }
  ]
}