Disable an account using REST APi not working

[James Inger]

I am trying to disable a user via the REST api

https://[DOMAIN].atlassian.net/rest/api/3/user

using the Basic auth - email address and Token

The body is (raw) JSON

{

"active": false,

"emailAddress": "...................."

}

But then I get a 500 error as below

{

    "errorMessages": [

        "The request failed. We're not sure what went wrong. Try again and if the problem persists, contact Jira support."

    ],

    "errors": {}

}

Any ideas ????