This is very useful if you have your own tracking script or any third-party service you'd like to append the Upsales form. But, there are a few things to read up on depending on what publishing option you select:
Upsales do supply its own tracking script which works with all the below publishing options, without any customization needed.
Hosted by Upsales
No known changes needed. Your script will be added to the page where the Upsales form is shown.
Embed on website
This option might require some changes to your default script.
This option uses iframe technology which means the form is originally hosted on an Upsales URL, but pasting the code on your website will display as if it was indeed placed on your site. Due to this, some changes are needed for your script to be recognized by, for example, Google Analytics
Raw form code
With this option, you are probably better off adding the tracking script to one of your web pages rather than for the form itself. Adding the script to the form and then adding that form to one of your pages where you already have tracking might clutter your tracking-data.