I have installed the QTPro version 4.2 contribution, which allows us to track stock levels of various sizes, colors, etc, of a particular item.
It seems to work if I create a new product option in the admin interface. But we have a large number of items already in our store from a time before we installed the contrib.
When I check the "track stock" checkbox in the admin interface, and try to save the changes, nothing seems to happen.
How can I modify my database rows, etc, so that the items already in the catalog can be tracked?
Thanks,
Jason