Does anyone know how to use the different calender codes maintained in a business partner role (Buy-from, ship-from and invoice from) ?

I am on Baan V

Thank in advance.

the calendar will be used to show the availability of the BP in specified time range.
eg :
u use the 5 working day calendar in 1 BP, when u generate planned purchase order, the lead time will consider this 5 working day to calculate the planned receipt date.