If your use case requires this in Funnel, you can request it as a custom connector.
Custom connectors and data requests are available only in Business and Enterprise plans.
What Leads Data Can I Get
Ad ID: The ID number of the ad associated with the instant form.
Ad Name: The name of the ad associated with the instant form.
Ad Set ID: The ID number of the ad set associated with the instant form.
Ad Set Name: The name of the ad set associated with the instant form.
Campaign ID: The ID number of the campaign associated with the instant form.
Campaign Name: The name of the campaign associated with the instant form.
Created Time: The time the lead was created.
Form ID: The unique ID number of the instant form used in the lead ad.
Form Name: The name of the instant form used in the lead ad.
ID: A unique ID number for each lead created.
Notes on this custom connector
The data includes the Form Questions and Form Responses.
Facebook restricts data retrieval to the most recent 90 days of lead information.
How to request this data
To request Facebook Leads data, submit a data request.