The shipping workflow with Xero is simple and automatic:
Enter invoices into Xero.
Descartes ShipRush imports invoices automatically.
Ship within Descartes ShipRush Web.
Descartes ShipRush Web will save the Tracking Numbers in Xero (if configured to do this). This option is selected during Xero Setup.
This process is also explained visually:
Paid invoices are locked by Xero and cannot be updated with shipping information. When shipping against unpaid invoices, some configuration options are available. (Edit the Xero Web Store in Descartes ShipRush Web to set these options after performing the initial setup).