How to Set a value for lookup field using Plugin in Dynamics CRM? I am using the code below but it is NOT working.
Entity ent = (Entity)service.Retrieve("mdoc_sentence", sGUID, new ColumnSet(new string[]{ "lookupFiled"} );
ent["lookupFiled"] = "baa25488-6d99-es11-99da-225056836fb7";
service.Update(ent);
You should use following code:
ent["lookupfield"] = new EntityReference("entityname", new Guid("baa25488-6d99-es11-99da-225056836fb7"));