# What makes the AI stop calling a lead?

Hitting the bound success metric marks the lead won and stops the dialing. In the campaign editor's Success Metrics section you bind a real structured-output field from the assistant, for example appointment_booked = true. When a call hits that field, the lead is marked won and the dialer stops calling it.

A do-not-call flag also stops dialing, and Smart Do Not Call auto-flags a lead the moment the callee asks not to be called. The success-metric binding validates against the assistant's actual fields, so the AI knows when it succeeded and never keeps hammering a seller who already said yes.

Read online: https://docs.closemagnet.com/articles/questions/what-stops-the-ai-calling