If you are shipping to Amazon FBA, Amazon will generate your Ship-To Address when you create a shipping plan for your inventory.
The Ship-To Address will be one or more FBA warehouses as determined by Amazon based on your ship from location, inventory packaging, and Amazon's location-based demand for your product.
Where is my shipment going?
When setting up my shipping plan does it automatically direct the product
from my supplier to the nearest FBA warehouse nearest to my customer?
Does the supplier know where to ship my products?