To be able to pack materials, you must first create an empty handling unit. In a second step, you can then assign materials to this handling unit; the materials are then packed.
If you work with external identification numbers, enter these in the Handling unit field.
If you only enter one packaging material, the handling unit number is assigned internally according to the settings in Customizing.
During packing within delivery processing, you can also enter a customer’s packaging material (in the outbound delivery) or a vendor‘s packaging material (in the inbound delivery) in the CustPackMat. field as an alternative to the packaging material.