Segment creation based on a condition

Hello All ,

I need a udf for the below scenario. Tghis a SHPMENT to VDA4913 scenario. In this case some times Handling packagin unit has both returnable and non returnable data. SO business want both in their ASN.

Here , if the value of field VELIN=2 and SMGKN =S , both exist in E1EDL37 then target node need to get created. VELIN filed is under E1EDL44 and SMGKN is under E1EDL37.

Please help me out with this solution .