A: Hi
yes, you can add script snippet of the widget as HTML , for example https://help.samcart.com/support/solutions/articles/60000650238-facebook-pixels-and-custom-conversions.
head to General Marketplace Settings in your SamCart Dashboard and paste your script in the Embed HTML/Scripts in Header field. Press the Save Changes button afterward

let me know if you will need any help. useprovenly [@] gmail.com