If you have selected Print Label and the print dialog box does not popup, your shipping label may be automatically downloading as a pdf file instead. This can be due to a setting when using the Chrome browser. To resolve the issue follow the steps below.
Select the 3 vertical dots in the upper right-hand corner and select Settings from the dropdown.
Select Security and Privacy.
Select Site Settings.
Under Content select Additional content settings.
Under Additional content settings select PDF Documents.
Select Open PDFs in Chrome.
Your labels will now pop up with the printing option at booking or reprinting labels from the History/Track page.
If you do not want to disable the option to Download PDF files instead of automatically opening them in Chrome because you use it for other services, you can change the way the popup label appears.
Click the Settings tab.
Under Admin Settings select Other Settings.
Check Use legacy label pop-up even in Chrome and Safari and click Save Changes at the bottom.
Now when you go to print the label it will ask where you would like to download the PDF.