The tracking number is there. The carrier is there. But the tracking info only shows - error: Tracking information is currently not available. Please contact us for more information or email us at ...
Does anyone one know what may be Wrong? I contacted ShipStation and they said - ShipStation does import the tracking info back to Magento 2. The shipment update we send to the selling channel includes the tracking number, carrier, service, and carrier fee.
But they said this is a Magento 2 issue.