Lot Compilation 
This function enables you to allocate devices to a lot or remove devices from a lot.
This function is a prerequisite for subsequent device inspection functions.
You can use enhancement EDMLOT01 (Compile inspections/selections for lot) for this function. This enhancement allows you to perform addition device inspections to decide whether devices are to be included in the lot.
Before you can allocate devices to a lot, you must create the lot.
Devices can only be removed from an official lot if sample devices have not yet been removed from the lot.
Before you allocate warehouse devices to a lot or to prevent them from being allocated to a lot, you must establish customizing settings accordingly.
You use selection criteria to allocate devices to an existing lot. You can either specify each device separately, or you can use the device category and other selection criteria to determine multiple devices and allocate them to the lot.
You can also remove single devices or devices of a specific device category from the lot.
The system changes the lot compilation date in the lot master record to the current date and resets the number of lot devices.