CS-Cart and Multi-Vendor need the address of the store and the address of the customer to calculate shipping costs. A customer can enter the address when placing an order or creating the account.
Default Customer Address
The Settings → General page allows you to specify the Default location, in other words, the default customer address. It will be used for testing the rate calculation of real-time shipping methods in the admin panel.
The Settings → Company page allows you to specify the sender address (the address of your store and warehouse).