Replace YOUR_TAG_ID with your own unique tag ID. To find your unique tag ID, go to Ads Manager and click Ads, then find Conversion Tracking and click Get started under Install Pinterest Tag. Copy the 13 digit number below Unique Tag ID and paste it in place of “YOUR_TAG_ID” in the code. Click Save in the top-left of your Squarespace Code Injection page. Add the checkout event After you install the base code, you can add different events to gather additional data. You can add the checkout event to track when people purchase a product and complete transactions. From your Squarespace admin, navigate to Settings. Click Advanced and then click Code Injection. Scroll down to the Order Confirmation Page box and paste the following code in the box. If there's already code in this box, paste your event code after it: