Facebook Ads Tracking and Audit Expert

Meta Pixel / Conversion API Expert Needed – Facebook Ads Tracking Audit I need an experienced Meta Pixel / Conversion API specialist to audit and fix Facebook ads tracking for a live events / ticketing business. Current issue: Meta Ads Manager is significantly underreporting purchases compared to actual ticket sales. Example: £174 ad spend showing only approx £160 tracked revenue in Meta, while actual ticket sales during the same period are approx £610+. Setup includes: Meta / Facebook ads Custom landing pages Ticket Tailor checkout Embedded / modal checkout flow Possible custom domains I need somebody to: Audit Meta Pixel setup Audit Purchase event tracking Check domain verification Check Aggregated Event Measurement setup Audit Conversion API (CAPI) Test the customer purchase journey end-to-end Diagnose attribution leakage issues Ensure events are firing correctly Improve Meta purchase attribution accuracy IMPORTANT: This is NOT about improving ad creative or campaign strategy. This is specifically a tracking / attribution audit and fix. Please only apply if you have specific experience with: Meta Pixel Conversion API GTM Ecommerce or ticketing attribution troubleshooting When applying, please briefly explain: What you think the likely issue is Similar tracking problems you’ve fixed before What access you would need How you would test the purchase flow