Change Calendar in an Inventory organization

We have attached a Standard Calendar with no exception list to an Inv org. (This Standard calendar should not be modified) . Actually we want to add the holidays as exception list.

So we have created a new Calendar with exception list, now we want to attach this new calendar to the inv org.  There are several Sales order, IR ISO transactions.Apart from open Sales Order schedule, will there be any other impact to other modules like Project MFG,INV,OM,AP,AR,GL,PO etc.