Optimization Events

Complete Registration Optimization

By the AdFlint research team · Last reviewed July 2026

Optimizes toward finished signups (account creation, trial starts, webinar registrations) rather than the clicks or page views that precede them.

You fire a CompleteRegistration event when a user finishes creating an account, and Meta builds an audience model from those conversions. It suits SaaS trials, apps, courses, and gated communities where the signup is the real business milestone. The mistake is firing the event on the form view or on a soft opt-in, which teaches the model the wrong behavior and quietly inflates reported registrations.

Complete Registration Optimization compared with

The settings this gets confused with, and how to tell them apart.

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