Scenario #1: For some reason your marketing materials must go to print, but the campaign website or app is not yet ready (URL still undetermined).
Scenario #2: The URL used within the QR Code is incorrect (e.g. typo) but marketing materials have already been printed.
Scenario #3: Life cycle of the QR Code outlives marketing campaign and you need to direct the user to somewhere else that is meaningful after the campaign.
If you have ran into any of those scenarios above or if they have the chance of happening in the future, it is a good idea to use QuickMark Color. Because we will provide you an easy interface to change the URL destination of your QR Code whenever you please.