So you're in the Mobile Shipping Station, you've inputted your carton weight and dimensions, and you've produced a shipping label.
While it may be easy to take the label, stick it on the carton and go about your day, the order is still in a "Processed" status rather than "Shipped". The order is ready to ship as noted on this screen, but the shipping process has not been completed. Click the Next button in the bottom right complete the shipping process and mark the order as shipped.
You'll then see the confirmation message in green at the top of the page and are able to move on to the next order, if needed.
The above is the answer to the question.