There are two checks within the Campaign Wizard to ensure one, that the vanity domain is pointed properly and two, that the tracking code has been added to the landing page. If either are not correct, you will receive an error message and will not be able to move on to the final step in the Campaign Wizard.
Once the Campaign has been sent your live pURL/QR Codes will be generated and live. You’re now ready to fully 
test them out 
to make sure they are redirecting and updating to the Postalytics Dashboard properly.