Whenever you program ABAP reports displaying Purchase Order Items data it is nice to have drill down functionality to transaction data (trx. ME23N). It looks like a trivial task (setting Parameter IDs for Purchase Order / Item and Call Transaction), but in reality ME23N transaction is not using Parameter IDs as we expect. In my blog I will explain how to enhance ME23N to make drill down work.
What is takes is to enhance INIT_TRANSACTION form in RM_MEPO_GUIF01 adding some code to end of the form implicit enhancement point.
So now if I jump from my report setting BES and BSP Parameter IDs everything will work like a charm
Try attached Z_ME23N_DRILL_DOWN report