Hello EveryOne, I have 2 custom entities, the Postulacion entity and the Matricula entity, I create the Matricula record inside the Postulacion Plugin (Stage: Pre Operation – sync) : private Guid CrearMatricula(IOrganizationService servicio, ITracingService tracingService, Entity eMatricula, Guid gOportunidad, EntityReference erCliente) { … Matricula.Id = servicio.Create(eMatricula); … } So far so good, the problem is when within that same plugin (Now Post Operation – sync) I try to call the Cross-entity navigation Endpoint using the recently created Matricula.Id the endpoint response is “Not Found” Cross-entity navigation Code : var jCuerpo = (dynamic)new JObject(); jCuerpo.traversedpath = “ed1c90a4-d769-4089-950a-baba331db0bd,2c633484-48f8-4816-9c24-c406ee3b74cd,6d92c079-2378-4e98-93da-6a737afb779b,566bc8bc-97e8-43c5-8be3-fb15316b19b0”; jCuerpo[“[email protected]”] = “/onetoone_matriculas(” + context.SharedVariables[“MatriculaId”].ToString() + “)”; string sUrlEndPoint = ” “xxxx.crm2.dynamics.com/…/onetoone_1to1utppregrados(” + gInstanciaFlujoId.ToString() + “)”; tracingService.Trace(“url Endpoint: ” + sUrlEndPoint); tracingService.Trace(“Cuerpo: ” + jCuerpo.ToString()); HttpClient client = new HttpClient(); client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(“Bearer”, sToken); client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue(“application/json”)); client.DefaultRequestHeaders.Add(“OData-MaxVersion”, “4.0”); client.DefaultRequestHeaders.Add(“OData-Version”, “4.0”); client.BaseAddress = new Uri(sUrlEndPoint); HttpRequestMessage request = new HttpRequestMessage(new HttpMethod(“PATCH”), “”) { Content = new StringContent(jCuerpo.ToString(), Encoding.UTF8, “application/json”) }; HttpResponseMessage response = client.SendAsync(request).Result; The code is correct because when I replace the matriculaId with a previously created one, the call to the Endpoint ends correctly, also the matriculaid value is always there, I have already obtained the traces and the value is there. What I have thought as the creation of Matricula Record is done recently still does not exist before finalizing the Plugin execution (post Operation), but I am not totally convinced, please I would appreciate any advice , Antony