A listing and a warehouse product are not the same thing
Matching is quantity based: a three-item bundle listing moves three units. One stock product can be part of several listings. An unmatched listing is red, and if it sells, stock is not reduced and a warning is raised instead of a wrong number being written.
The silent failure is the expensive one
An unmatched listing that quietly sells leaves stock untouched. Everything looks fine until a count disagrees by exactly the number of units nobody recorded.
Raising a warning at the moment of the order turns a month-long mystery into a two-minute fix.
Bundles are where quantity matters
A listing that contains three of a product has to move three units. Matching one-to-one would understate consumption by two thirds on exactly the listings that sell best.
Frequently asked questions
What happens if a listing is not matched?
Stock is not reduced and the order is flagged. Linking the listing fixes it going forward.
Can one product be in several listings?
Yes, including as part of bundles with different quantities.