I have a problem where going to the checkout event simply doesn't trigger the "InitiateCheckout" on my Facebook Events Manager.
I use Flexify Facebook App on shopify for my catalog, all other standard conversions seem fine so far.
Below is the clear issue, as you can see that when I click on checkout (as highlighted in red), it only registers as page view but not "InitiateCheckout" whereas, other events such as "Add to cart" does get triggered.
Would like to know how to solve this problem or if anyone faces the same problem as me.
Thanks in advance!