How to track purchases/conversions on Order confirmation in GA

Site URL: https://www.alicefitzgerald.ie

I'm not sure if I have GA goals set up correctly to track conversions, in this case, purchases in a web shop.

Currently, I've set up a goal (destination), with Destination set to 'Equals to' '/order-confirmed'. I set up a funnel, and that's tracking some things, but I'm not sure if final purchase confirmation is being tracked (set as 

I've been having issues with Squarespace 'missing' transactions, but now that e-commerce data are flowing, I still have the same issue.

Is this the right set-up, or what should I do?

(PS: if Tag Manager is another way, that's also an option.)