Diffrent Plant diffrent Lot size calculation

Hi,

I have a requirement where we Need to create production order in 3 diffrent storage Location or plant. In each Plant or storage Location i have to use 2 diffrent way to for calculation of lot size for planned order. In on storage Location it should fix lot, in second storage Location it should as per SO rquirement.

Pls let me know how to map this senario in SAP.