Step 1: Copy your new Checkout Script

Once you have saved your new Campaign or Campaign test and are not planning on making any other edits to it, head over to the Campaigns tab on the left-hand side of the Intelligems app. In the top right of that page, click on the button that says Checkout Script - this will open your most up to date Checkout Script. At the bottom of that window, click the Copy button to copy the full Checkout Script to your clipboard.