Optimization Events

Lead Optimization

By the AdFlint research team · Last reviewed July 2026

Tells Meta to seek people likely to submit a form, whether on an instant form or your own site.

Delivery is trained on your lead event, so form submissions are what the auction chases. Instant forms fire the event natively; website forms require the pixel or Conversions API to report it reliably. Most advertisers get volume and then complain about quality, but Meta optimized exactly for what you told it to count. Send back a qualified-lead or booked-call event so the model learns which submissions are worth buying.

Lead Optimization compared with

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

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