This happens when you have enabled "Automatic Stock Control" but did not upload the stock file.
More importantly, ALL Products in your shop must have unique Catalog Number
- Open your shop in ShopFactory
- At the left tree menu, click on the LIST of Contents
- Check all your products have unique catalog number/ item number.
- If your products have OPTIONS and CHOICES, then make sure you also go into the Product dialog -> More... -> Options and Choices and assign unique catalog number for each choice.
Once you have completed the above, tick "Enable automatic updates of stock levels" under Services menu.
You need to publish the stock file again via Central -> Stock Levels dialog.
NOTE: Please make sure that your Publish SETUP dialog box contains your correct hosting details. ShopFactory uses the details in the publish setup dialog to connect to your Host.