Fought with mismatched attribution data across GA, Facebook, and Adjust for months. Discovered web-based onboarding funnels can preserve UTM parameters through the entire journey, syncing cleanly with MMPs. Our conversion reporting finally matches ad spend. How are you maintaining attribution accuracy across platforms post-iOS15?
Web funnel + UTM passthrough solves this.
Our web-to-app flow preserves campaign tags by design.
Using a platform that handles parameter persistence cut our attribution gaps by 80%.
Added server-side UTM logging in the web funnel.
Now cross-reference with MMP data through a simple API integration.
Discrepancies dropped from 35% to under 5% in our fitness app.
Just pass UTM params from landing page to paywall.