Plug in does not seem to be working for me

Can you post your version of woocommerce, wordpress, and a screenshot of your no po boxes settings screen?

Also, please let me know if you’re using a checkout page that isn’t a standard woocommerce checkout page.

WooCommerce: 4.3.1 / WordPress 5.4.2 https://www.dropbox.com/s/r9kvfledxoyqm7w/screenshot.jpg?dl=0

also stand checkout page, as far as I know.

FOLLOWUP: The error was totally on my end (user error) I did not realize I had to click the “Place Order” button to submit in order to see the logic of the plugin work. Knowing that now, I can see the plugin does indeed work exactly as described. Thanks!