Hello. I use the old Webasyst , and I have such a need:
I make a hidden field in the product card and the value that will be written there I need to add to the final price. Please tell me how to do it.
For example:
The price of the product is 10,000 rubles.
the page has a field <input type="hidden" name="my_add_price" value="3000">
Whatever when I clicked to add to the cart, then the item with the price of 13000 got to the cart. Please help me, it is very necessary. thank