Diagnosis
You are trying to process or display several handling units (HUs) at thesame time. Processing HUs can include either packing or unpackingtransactions. The message is cancelled by different references for the i
ndividual handling units.
One of the following reasons may be responsible for you not being ableto process the handling unit:
You are trying to simultaneously process HUs which have references todifferent documents (sales order/scheduling agreement, stock transportorder/scheduling agreement or delivery). The document items must also beidentical.
You are trying to pack another material for a HU. This HU already has areference to a sales order, an order or a delivery.
You are already processing a HU with reference and want to pack morematerial into a newly created HU.

Procedure
It is not possible to process HUs with different references at the sametime. If it is necessary to process these HUs, you must firstly deletethe existing references for the sales order, order or delivery.
HUs without reference can therefore not be processed any further usingtransaction VL10HU.