I raised this issue previously on May 2025 and received the generic “we’re aware, but have no plans to address it” .
The current workaround is to educate merchants about the Web Pixel’s limitations and advise them to add scripts directly to their theme. That’s less than ideal, and combining Web Pixel with on-theme scripts typically leads to inconsistent data. Here’s why: on the checkout, only the Web Pixel attempts to load, and ad blockers frequently block it. Meanwhile, on-theme events (like add_to_cart) fire reliably. The result is a persistent skew where add_to_cart events always outnumber checkout_started events.
The real solution would be for Shopify to make Server Pixels generally available. They’ve been in an invite-only beta since 2023, which means large partners (Meta, Klaviyo, etc.) already get consistent, reliable data so this adblockers issue is probably not a priority for 90% of the merchants.
Until Server Pixels are released to general public, smaller apps will just have to live with inaccurate data.