In older versions if we needed to apply a fixed fee in one field, we had the option to tell ppom if this fixed fee has to be with or without taxes.
We do not have it anymore and is not woking well.
We have all the shop based in taxed prices, but if we add a PPOM input with fixes taxes it shows in the product page as non taxed and then in the cart, taxed.
This causes confusion as the price shown in the product page and the price shown in the cart page are not the same.
You should solve the problem, showing in the product page the fixed fee price witn or without taxes based in woocommerce taxes setup.
I soved the problem adding the taxed price in the description of the option, but this is not the way.
PPOM PRO 18.14
Please is urgent as website is in production.