The default of this selection is "yes" for accepting separate shipments. It means that we will ship what we have in stock immediately. The remainder will be shipped when we receive them. If you select "no", it means we will ship your order when it is complete.
The default of this selection is "no" for not accepting partial shipments. It means we will ship your order when the particular item is complete. If you select "yes", it means that we will ship what we have in stock for each item immediately. The remaining copy or copies will be shipped when we receive them.