posting with ax.

SalesFormLetter salesFormLetter;
SalesTable salesTable;
;
salesTable = SalesTable:: find("12345" );
salesFormLetter = SalesFormLetter: :contstruct( DocumentStatus: :Invoice) ;
salesFormLetter. update(salesTabl e, SystemDateGet( ),
SalesUpdate: :PackingSlip, AccountOrder: :Account, NoYes::No, NoYes::Yes);