Enhancement in VL02N where I can get material Document Number when doing PGI

Hi,

Can any one suggest BADI/ USEREXIT  for TCode VL02N where I can get material document Number on doing PGI.

I have tried MB_DOCUMENT_BADI , MB_MIGO_BADI,LE_SHP_DELIVERY_PROC ,LE_SHP_PRICING

and user exits like  mv50afz1 .

Looking for valuable suggestions.

Thanks and Regards,

Subeesh Kannottil