CRM: Can't update OriginatingLeadId of Contact

Question

I've expirienced a very odd behaviour of my CRM 2011 API. When I try to update originatingleadid field of contact from one value to another nothing happes. No any errors in code, so when executing code everything looks perfect. But the value doesn't really changes.

I wrote a simple method to test it and have got same result. Here is it.

class Program
{
    private static IOrganizationService service;

    static void Main(string[] args)
    {
        var contactId = Guid.Parse("B5A832D6-93DD-E611-ABAC-005056810E95");
        var leadId = Guid.Parse("8306E695-94DD-E611-ABAC-005056810E95");
        getService("admin", "password", "domain");

        SetOriginatingLead(contactId, leadId);
    }

    private static void SetOriginatingLead(Guid contactId, Guid leadId)
    {
        var entity = service.Retrieve("contact", contactId, 
new ColumnSet("originatingleadid"));
        var targetlead = new EntityReference("lead", leadId);
        entity["originatingleadid"] = targetlead;
        service.Update(entity);
        return;
    }

    private static void getService(string login, string password, string domain)
    {
        if (service != null)
            return;

        var cred = new ClientCredentials();
        cred.Windows.ClientCredential = 
new NetworkCredential(login, password, domain);
        service = new OrganizationServiceProxy(new 
Uri(@"http://crm/organisation/XRMServices/2011/Organization.svc"), null, cred, null);
            return;
    }
}

Please, tell me where am I mistaken.

Answer 1

You cannot update the value of OriginatingLeadId. This can be seen in the EntityMetadata.xlsx file from the SDK.