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On the "add to cart" page, I let the user enter "Width" & "Length" to calculate the number of Square Foot as the quantity which works fine with a JS function. Now my client wants to add an "overhead" price to the product based on the selected variations. Is there a way, either an "hidden field" in the form OR a hook in the module where I can put the amount to add to the line item ? Or any other best idea is appreciated as well ! I'm on Craft Commerce 4.

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You would need to change the price of the line item based on the option data sent in.

https://craftcms.com/knowledge-base/dynamically-customizing-line-item-prices

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  • The worst thing is that you cannot change the total and subtotal, as this is a property read, except adjusters.
    – RomanAvr
    Jun 16 at 10:36
  • Thanks @Luke for your answer. You pointed me at the right place. However, from what I see, it looks like all the previous line-items are visited in the process. Althought the rules don't change, it will perform calc on already saved items. Is there a way to get a hook on the actual item added to the cart ? Jun 22 at 12:37

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