defaulting account assignment category for custom document types in me21n and me51n
I have a requirement to default account assignment category as F for two custom document types in tcode ME21N ,ME51N
Tried using exit EXIT_SAPMM06E_017 include ZXM06U42. I am able to get the entered item details edited it as F in "i_ekpo" knttp also in table tekpo,
but its not getting reflected in me21n screen .Please help finding some solution for this .