Update Owned Field
POST /admin/customfield/ownedFieldBundle/{bundleName}/{fieldName}
Update owned field
POST /rest/admin/customfield/ownedFieldBundle/{bundleName}/{fieldName}?{newName}&{description}&{colorIndex}&{newOwner}
Sample
POST http://localhost:8081/rest/admin/customfield/ownedFieldBundle/New%20bundle%20name/Element%20name?newName=New+element+name&description=new+element+description&newOwner=beto
Cookie: $Version=0; JSESSIONID=8dmapdeyqjdkeab2l6yhf4cu; $Path=/; jetbrains.charisma.main.security.PRINCIPAL=NDgxMzQ5NGQxMzdlMTYzMWJiYTMwMWQ1YWNhYjZlN2JiN2FhNzRjZTExODVkNDU2NTY1ZWY1MWQ3Mzc2NzdiMjpyb290; $Path=/
HTTP/1.1 301 Moved Permanently
Content-Type: application/xml;charset=UTF-8
Location: https://example.com/youtrack/rest/admin/customfield/ownedFieldBundle/New%20bundle%20name/New%20element%20name
Content-Length: 0
Server: Jetty(7.2.0.v20101020)
Last modified: 2 February 2017