MRP: manage two calendars

Dear all,

I have a problem using MRP...

The production area of my customer works from Monday to Saturday (calendar1)

The Purchase office works from Monday to Friday (calendar2)

I need to create MRP scenario based on production calendar1 and purchase calendar2.

Does it exist a workaround to use two different calendars in MRP, one for production and one for purchasing?

I need to create MRP forecast, where production orders can have DocDate from Monday to Saturday and purchase orders with DocDate from Monday to Friday.

Regards

Emanuele