title: Adding Annotation
body: <p>I am trying to add a annotation via code and the annotation adds fine but it won't add the correct CreatedBy user. It just adds the annotation and sets the createdby user to the admin. This is what I am using:</p>
  
  <pre><code>Entity annotation = new Entity("annotation");
  annotation["createdby"] = new EntityReference("systemuser", new Guid("2a213502-db00-e111-b263-001ec928e97f"));
  annotation["objectid"] = new EntityReference("opportunity", opportunityId);
  annotation["subject"] = "Lead Note";
  annotation["notetext"] = p.Column_18;
  Guid annotationId = lService.Create(annotation);
  </code></pre>
  
  <p>Do you have to do anything special to add the CreatedBy?</p>
  
  <p>Thanks!</p>