Hi, Jaspersoft server 6.1. I'm stuck on the modify part of the user, I can login via Rest but not able to change the roles, error 404. If I try via rest client I get a nasty error ( <errorDescriptor> <errorCode>unexpected.error</errorCode><message>object references an unsaved transient instance - save the transient instance before flushing: com.jaspersoft.jasperserver.api.metadata.user.domain.impl.hibernate.RepoRole; nested exception is org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.jaspersoft.jasperserver.api.metadata.user.domain.impl.hibernate.RepoRole</message>)This is the .NET code: using System;using System.Collections.Generic;using System.Collections.Specialized;using System.IO;using System.Linq;using System.Net;using System.Text;using System.Threading.Tasks;using System.Xml; namespace JasperUsersync{ class Program { static void Main(string[] args) { // Setup WebClient WebClient httpclient = new WebClient(); var server = "http://local:8080//reportservice"; var login = server + "//rest//login"; //Set the content type of the request httpclient.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded"; // Send PUT //Set the username and password NameValueCollection parametros = new NameValueCollection(); parametros.Add("j_username", "superuser"); parametros.Add("j_password", "pwd"); //Request to login httpclient.UploadValues(login, "POST", parametros); //Get session cookie string session = httpclient.ResponseHeaders.Get("Set-Cookie"); //Set session cookie to the next request httpclient.Headers.Add("Cookie", session); string userURL = ("http://local:8080//reportservice//rest_v2//permissions//organizations//myorg//users//Testadmin"); string json = "{"enabled":true, "roles": [{"name":"ROLE_USER"}, {"name":"CSK_ROLE_PROJECT_MANAGEMENT"} ]}"; httpclient.Headers[HttpRequestHeader.ContentType] = "application/json"; string response = httpclient.UploadString(userURL, "PUT", json); } } What is the clue ??? kind regards, Elwin