Field help (SALALLTYP) 

The allocation type for an order line has as its default value the allocation type defined in the order header. It is possible to modify the allocation type (Global/Detailed) on a line, provided that the selected order transaction allows it. A global allocation is carried out depending on the available stock total. A detailed allocation reserved the stock objects (Lot - Serial number - Status - Location).

When the order line is allocated, this information is no longer accessible.