Question on OBBA

Hi,

i want a little clarity on tcode OBBA. i understand that it calculates the value date considering the cases when a value date falls on a holiday or weekend.

I am using f-28 to clear a customer invoice and expect the configuration made in OBBA to reflect here.

After making necessary entry in OBBA for the house bank(given in the customer master record), i expect the change to reflect when i run f-28. But it doesn't.

Could someone tell where all does the OBBA configuration affect. Would running an automatic payment for clearing attract the OBBA configurations?

NB: i have made sufficient entry in OBBH too.

Thanks,

ficoguy.