Please follow these steps below to Disable your Shopify's pixel
In your Shopify admin, click Facebook > Settings.
In the Settings section, choose Data sharing settings.
Disable the option "Enable Customer Data Sharing", and then click Confirm.
Perhaps that Pixel has already been activated twice on site. It is really important to note that according to Facebook policy, it is not allowed to have the same pixel activated 2 times on the web page, which can cause errors in your event tracking.
The solution is to download the Facebook Pixel Helper extension to check whether or not your pixel is violated. After checking, you need to disable that duplicated Pixel either in your Shopify admin or from other apps.
Refer to our instruction video for more information here
1. Regarding the Purchase event, it will only be tracked when the purchase is completed and your customer is redirected to the Thank You page after. Please note that our app only tracks Shopify checkout, not a third-party app
2. You need to go to Settings -> Checkout
Add this script below
The Facebook Pixel collects data that enables you to track conversions from Facebook ads, including website behavior and cross-device activity. This lets you optimize ads, build more refined audiences for future ads, and retarget people who have taken specific actions on your website.