Why Facebook Ads Report Fewer Conversions Than You Actually Got
If you run Facebook ads on a website that shows a cookie consent banner, your Ads Manager is almost certainly showing fewer conversions than you actually received. This is not a bug. It is a direct result of how privacy regulations interact with Meta Pixel tracking, and it has a specific fix. What Happens When a Visitor Declines Cookies When someone lands on your site and clicks "Reject All" on the cookie banner, your Meta Pixel never fires. Under GDPR and the ePrivacy Directive, that is exactly what is supposed to happen. The regulation requires informed consent before any tracking pixel collects data. The problem is that the visitor does not stop browsing after declining. They may view multiple pages, add products to a cart, and complete a purchase. From Facebook's perspective, none of that happened. The visit does not appear in Events Manager. The purchase does not count toward your campaign's conversions. Your cost-per-acquisition looks higher than it actually...