how can customize the payment advise note at the time of proposal.
1.after given parameters(company code,payment method, next date save).
2.then addtional log radio button .
3.Print out/data medium tab i create Variant parametrs included and save.
4.then i can click schudule run button.
5. here i want for payment advice use t code SP01
please give the guidence for customization it is very good help to me and appriciate.