We currently use Linnworks as a our order/inventory management system, which sends the stock inventory to our Website.
We are having an issue with our stock levels being kicked out. It is allowing customer to click on the product but when they select add to basket customer receive an error message "requested quantity not available" The feed from linnworks is updating the quantity on the back end of the website, however we have noticed the sellable quantity on the back end does not match sometimes it can be zero or sometimes is can be in the minus'.
Why is this happening, how do we go about fixing this?
We can not confirm how your feed update process works, but try adding the re-indexing after your feeds get updated. Other than that as you mentioned the issue for the salable qty you can check the below-mentioned StackOverflow link, the mentioned solutions on that answer will help.