Refer to SAP note :0000546668
6. How can the split be affected via the copy control? Answer: Via the copy control, the data is copied from the preceding document to the header of the delivery and therefore acts as splitting criterion. Two routines are relevant for the data transfer for outbound deliveries with order reference in the standard: o FORM routine DATEN_KOPIEREN_001 (include FV50C001) for the transfer of the data from header (CVBAK) and item (CVBAP) of the sales order. o FORM routine DATEN_KOPIEREN_002 (include FV50C002) for the transfer of the data from the business data of the sales order. With all other outbound delivery types as well as with inbound deliveries, the data transfer is carried out via FORM routine DATEN_KOPIEREN_301 (include FV50C301) or DATEN_KOPIEREN_201 (include FV50C201). In the table with delivery header data LIKP, there is field ZUKRL which can be filled with any values via the copying control. The contents of this field act as splitting criteria for the delivery creation so that you can use it in order to force a delivery split according to your own specifications. Apart from that, the field does not have any business or technical importance and can be delivered via both of the routines mentioned above. You can find more detailed information in note 166397.
