Dynamics 365 WhoAmI
In Dynamics 365, once we have the IOrganizationService object, we can retrieve the user id, organization id and the business unit id: CrmServiceClient conn = new CrmServiceClient(new System.Net.NetworkCredential(userid, password, domain),server, port, orgname); IOrganizationService _orgService; _orgService = (IOrganizationService)conn.OrganizationServiceProxy; Guid orgId = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).OrganizationId; Guid userId = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).UserId; Guid businessunitId = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).UserId; Code running: