Suppliers assign certain stock volumes to us or, alternatively, connect their stock records to our systems through an api. However this is drop shipping and products can get sold out, and systems fail. In the event, the stock has run out or if the supplier does not keep stock levels up-to-date in our system via api, this will impact their rating. In the unlikely event of a temporary system crash, we will take the system out of service and it will not be possible to order products from this particular supplier. All products will show “out-of-stock” until we solve the issue with the supplier.