A repeatable group of data elements which together specify details of a stock shipment currently awaited, normally from overseas. Optional and repeatable if more than a single shipment is outstanding.

Note that quantities in the <OnOrderDetail> composite must be included in any total quantity on order given in P.26.37 <OnOrder>, and detail need not be given for all outstanding shipments (ie the P.26.37 <OnOrder> must be greater than or equal to the total of the <OnOrder> elements in repeats of the composite).