Shopify Tracking & Conversion Audit

My Meta Advantage+ catalog campaigns are logging healthy volumes of Adds-to-Cart, Checkouts Started and Purchases, yet inside Shopify itself almost no Add-to-Cart events appear and Quickengage / GoKwik show the same gap. Because of this, customer records are incomplete and it is hard to understand where shoppers drop off. I need a deep technical review of every touch-point: • Verify the Facebook pixel and Conversions API implementation, test events in Events Manager and confirm that both browser and server events are de-duplicated correctly. • Inspect Shopify theme, native pixel settings and any custom scripts to confirm the Add-to-Cart trigger fires on every product form and Ajax drawer. • Check Quickengage and GoKwik integrations to be sure they receive and pass back the same events (cart, initiate checkout, purchase). • Replicate the full customer journey—mobile and desktop—to spot any errors or blockers that might stop customers from completing payment. • Provide a concise report outlining what was tested, issues found, fixes applied, and screen grabs or test-event IDs that prove the data now aligns across Meta, Shopify, Quickengage and GoKwik. Acceptance criteria: After your fixes, Add-to-Cart counts inside Shopify should match (within normal attribution variance) what Meta logs for the same period, and Quickengage / GoKwik should show consistent customer details.