What you will need for this?
Facebook business account
Facebook tracking pixel
Follow these steps to add Facebook tracking pixel to the entire funnel :
STEPS:
Select the funnel from main dashboard.
Click on "Settings" icon from bottom of left side menu bar.
Scroll down to the Header Tracking code.
Paste your Facebook tracking pixel in the input of either Header Tracking code or Body Tracking code.

Scroll down and Click Save button.

Facebook business account
Facebook tracking pixel
Follow these steps to add Facebook tracking pixel to the entire funnel :
STEPS:
Select the funnel from main dashboard.
Click on "Settings" icon from bottom of left side menu bar.
Scroll down to the Header Tracking code.
Paste your Facebook tracking pixel in the input of either Header Tracking code or Body Tracking code.

Scroll down and Click Save button.

Published on: 04 / 06 / 2020