Hi team, 
For our WMS integration, we’ll need to provide our WMS partner with the order tracking number so they can arrange the packages when couriers come.
Yet, after we confirm stock availability, the tracking_code is not available yet. 
–> questions:

1. At what order status would this field be available?
2. For dropship orders, can we use pickup_shipping_code as tracking number so that when drivers come to pick up packages at WMS they can scan?

Thanks