This is mainly relevant for Australian Replenishment Orders, Amazon will require that you provide a courier tracking number.
When the warehouse team are processing your replenishment order and it is set to Despatched, the warehouse will update your replenishment order with the tracking number.
Access your courier tracking number by displaying the replenishment order and the tracking number will be displayed with the courier name.
Select Superhero Freight → Replenishments
Search for the Replenishment Order
Select View to open the replenishment order
The courier tracking number is provided as below