as far as I understood unit prices in Shopify, I think it's not possible to add mutiple product variants of the same SKU each with different unit amounts?
E.G. I want to add product1 with a unit price per m to cart, so I choose 5m. But I also want to add product1 again, but this time with 10m.
Now the cart now displays 15m of product1, but I want separate product1s, each with either 5m or 10m.
Is this a technical restriction? Or do I miss anything?
Assuming your base unit of measure for the product is 1 then you have a couple of options: