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204 - Change Number In Use

API Error Code 204
HTTP Status Code HTTP 409 Conflict
Error Text The commit ID specified has already been used.

The change number used to create a new review request wasn’t valid, because another review request already exists with that change number. You will only see this with repositories that support server-side changesets, such as Perforce.

Usually, the correct thing to do is to instead modify the other review request.

The resource information for the review request that’s associated with the change number will be returned in the review_request key.



  "err": {
    "code": 204, 
    "msg": "The commit ID specified has already been used."
  "review_request": {}, 
  "stat": "fail"