User details can not be update via rest api

[Hiren Patel]

Hello,

I am using JIRA rest api JIRA 7.0.2. In that trying to update user information by using below method(as per documentation-[https://docs.atlassian.com/jira/REST/latest/#api/2/user-updateUser]):
http(s)://jiraEndpointUrl/rest/api/2/user?username=User8
passing below json:
{
"name": "IRISUser8",
"emailAddress": "irisuser8@gmail.com",
"displayName": "IRIS User8"
}
when I am calling with above details then it will return below error(json response) to me with status code=400.
Json response(error):-
{"errorMessages":["This user can not be renamed because that operation is unsupported by the underlying user directory or JIRA is acting as a Crowd Server."],"errors":{}}.

So can anyone please let me know why it will give me an error for that and whats wrong in my API Code.

Thanks

[Hiren Patel]

Hi Rodrigo,
Yes I am using JIRA Atlassian Cloud.
Thanks 

[Rodrigo Rosa]

Hey Hiren,

Are you using JIRA Cloud? We have a open bug for it here: https://jira.atlassian.com/browse/ID-248