Full Answer
CAPI = server-to-server Facebook events. Bypasses blocking, extends attribution, more reliable.
Cherry Seed
What is Facebook Conversions API (CAPI)?
attribution model
conversion tracking
channel grouping
Quick Answer
Server-to-server connection sending conversion events from your server to Facebook. Bypasses browser blocking, extends attribution window (7-day CAPI vs 24-hour pixel), sends complete customer data. Works when pixel is blocked.