How to disable fallback cost for a specific Product

Login to https://my.profitmetrics.io/
If you have multiple websites, ensure you are on the correct website by clicking "Site:" at the top of the screen.
Navigate back to Products
Find the product you want to edit by browsing or searching for it in the list.
Click the Cost Price field and type a number like 0.01 (Maximum length is 2 decimals)
NOTE: Only the first two decimals are visible in the overview
Hit Enter on your keyboard or click outside the input field so save.

Done

Sometimes you want to block the fallback cost to be calculated for a specific product. This might be relevant for gift cards, shipping or special items.