I have a requirement where, while posting a document using F-02, it should display a message if MATNR is blank,
I have set MATNR as optional in SPRO,
it should post all documents with/without MATNR expect for G/L account '0000597656'.
so if G/L Account is '0000597656'.
and if Matnr = ' ' .
then it should display a error msg and stop posting,
I am trying the same using Tcode OB28,
i gave prerequistie : BSEG-HKONT = '0000597656'.
and in Check : BSEG-MATNR = ' '.
Message : Enter matnr,
please let me know if this process is correct, or what should I enter in Prerequistie and check coloumns,
its very urgent.