Hi Puskar
Correcting Amol..
To get the link between in process inspection lot and WBS element.
Pass the inspection lot number in QALS table and get production order number field AUFNR or Pass the Inspection lot number in AFKO table field PRUEFLOS and get the AUFNR production order number.
In AFPO table pass the field value AUFNR production order number and get the WBS element number in field PROJN.
Regards
Kesava