Hi @jt00,
I built CustomPix, a Shopify app that lets you choose exactly which image appears in your Facebook catalog (for example, the second product photo instead of the variant image).
We’re currently testing it with a few stores and improving it based on feedback. I know this thread is a bit old, but if you’re still looking for a fix, here’s the post with all the details:
New App: Pick the Perfect Image for Facebook & Instagram Ads