Updating a custom field in LIKP table through BAPI for outbound delivery

Hi All ,

I have got stuck in the following scenario . We have added a custom field "zdeldate" thru append structure in LIKP table . This would store the actual delivery date for the outbound delivery and this field value would be updated through a custom report built by me . On this report output , user would enter values for this date field for some delivery numbers . We need to update this date in the LIKP table custom "zdeldate" field through a BAPI . This field would be used only for reporting purpose by BW and it would nt be physically present on the delivery screen transaction ( VL01) .

Can someone please guide on which BAPI could be used to update this custom field in the delivery header table ( LIKP ) . I was looking at 2 BAPI's :

BAPI_OUTB_DELIVERY_SAVEREPLICA and

BAPI_OUTB_DELIVERY_CHANGE

but not sure whether these can solve my problem and how do we use these to update the custom field in LIKP . Any help on this would be appreciated .

Regards:

Ankit