Facebook Lead Ads: can't trigger

Questions
1

I successfully created and connected Facebook Lead Ads credentials.
However, I can’t figure out out to receive leads. I’m using the test tool from Facebook to create the leads.

Is it mandatory to turn the app to Live mode?

2

Is the Facebook app correctly configured with a Webhook URL and verified? Facebook requires that the Webhook be validated and approved before sending events?

You have the correct permissions in the Facebook app. The app must have permissions such as: leads_retrieval, pages_show_list, and pages_read_engagement.

Facebook Lead Ads Trigger in n8n is in live mode. The workflow must be activated, not just in test mode.

The app is in “Live” mode or is still in “Development” mode. Events are only sent to real users in “Live” mode.