Which route takes how long, and when to ship
You only define the legs: “TR warehouse → FBA UK: air 8 days, sea 35 days”. Multi-step routes are derived from those legs — you do not define routes separately. Reorder timing is computed from the duration of the route you chose.
Define legs rather than routes
Defining every route by hand multiplies quickly: three origins and four destinations is twelve routes, and each one has an air and a sea variant.
Legs do not multiply. Define each leg once and the routes between them follow — including the multi-step ones through a transit warehouse.
Which route is the primary one
A product usually has a normal route and an expensive fast one. Reorder timing should follow the normal route, not the fastest one, or the system will always say you still have time.
The primary route is set per destination, and the reorder date comes from its duration. The fast route stays available for when the planning failed.
Frequently asked questions
Do I have to define every route?
No. You define the legs and the routes between them are derived, including multi-step ones through a transit warehouse.
How is reorder timing calculated?
From the primary route’s duration plus the product’s days of cover, so the order date is the last day the normal route still works.