You can optimize your Facebook campaigns based on user interactions within an Opinion Stage item, by using a Facebook conversion pixel. You can set the pixel to fire based on the step or question that a user reaches, for example upon quiz/survey completion.

You can configure this in Settings > Pixel Tracking > enter Facebook Pixel ID

For help setting up a Facebook pixel, visit: https://www.facebook.com/business/learn/facebook-ads-pixel?ref=sem_smb&utm_source=GOOGLE&utm_medium=fbsmbsem&utm_campaign=G_S_Beta_AdvertiserPixelRefresh_Brand_US_EN&kenid=_k_EAIaIQobChMI78Wkx9bj4QIVio2zCh2rCQ_6EAAYAiAAEgKYVvD_BwE_k_&gclid=EAIaIQobChMI78Wkx9bj4QIVio2zCh2rCQ_6EAAYAiAAEgKYVvD_BwE

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