What does the Finish and Pay button do?

After selecting a Carrier Service within the READY TO SHIP page, clicking Finish and Pay will move the order from the READY TO SHIP to the READY TO PRINT page.

You can select Finish and Pay either at the top or the bottom of the screen.
This will send your shipments directly to the READY TO PRINT page.
A count of the labels queued for printing is visible at all times in the top right hand corner of the app.