How do you determine following in sales and distribution?

a.) Plant

To determine the plant in an order the system checks the master in the following order:
• Customer material info. record of the sold-to –party
• Customer master record of the ship-to-party
• Material master record of the material

b.) Route

Route determined using the following rule in Sales and Distribution (SAP)
• Departure Zone of Shipping Point
• Shipping condition (Sold-to-Party)
• Transportation Group (Material master)
• Transportation Zone (Ship-to-Party)