Hi,
Based on material behaves to business and different procurement process involved, you need two separate pricing procedures [ Calculation Schema} for domestic & import procurement process.Where you needs,two Schema Group Of Vendor for domestic & import and assign individual Schema Group Of Vendor ,Schema Group Purchasing Organization and individual Calculation Schema.
Based on Schema Group Of Vendor in the vendor master(XK02/XK01), the required pricing procedure
{Calculation Schema} picks in the system for vendor master which entered during creation of PO.
In addition, material tax structure in domestic & import procurement process are different and in import procurement process, you need have customs duty for Custom Vendor(Local) which to be paid before goods receipt.
For more refer
How to create a condition Type for Import Duty
Regards,
Biju K