Kevin,

I think I've got it figured out. I just want to make sure I have it straight.

If I have an entity object, I use
Entity.SetDataRow(dr);
to set the row so I can retrieve the data using MM Business Objects.

If I am referring to the entity as part of a Business Object I should set it using
oBizObj.Entity.DataRow = dr;

As near as I can tell, the SetDataRow() does not change the Business Object's DataRow.

Jeff