Open the 
Company
Information window.
On the Shipping tab, in the Location Code field, enter the location you want as the default location for your company.
When you order items to be shipped to your company, you often want the items delivered to a particular every time. If you assign a location to a company, the program will automatically use this location address as the company's ship-to address on all documents.
Open the Company
Information window.
On the Shipping tab, in the Location Code field, enter the location you want as the default location for your company.
If you leave the Location Code field blank, the program will use the company's own ship-to address as the default ship-to address.
About Using Locations and Responsibility Centers