I moved my online store from magento to shopify and after creating the ads, their statistics on facebook are COMPLETELY different in facebook analytics than on Google analytics and shopify analitics. You can see it on the screenshots, where MAN 15-30 FR campaign shows 94 visitors in shopify stats (and google shows similiar results) and facebooak shows 329! This is such a big discrepancy betweeen the numbers there has to be something wrong. I provided the screenshots with proofs. I'd appreciate any help in this regard!