Badi

hi,

i need to change the Fax number in transaction me22N or me21N when the user click on button CHECK.

i have a badi (=ME_PROCESS_PO_CUST) for that,

the interface that i should use is CHECK.

my problem is that i dont know how to write in the code that bring me the fax number of that purchase order, and than change it.

any help will be appreciated.

dana.