I've set my Facebook Pixel up via the integration, maximum settings etc. Everything is fine except the initiate checkout, add to cart and purchase are being shown as SubscribedButtonClick rather than the actual event. This means my purchases shown in events manager are a lot lower than actual orders in shopify. Any solutions would be greatly appreciated.
I went through this exact thing myself, what you need to do is set up the Facebook (Meta) Pixel through Google Tag Manager, optimally both server-side and on the website. This should solve the issue for you!