I am trying to update stock quantities in the test database. I'm still in the early learning stages before really setting up our company.  I have watched the videos and read documentation and have successfully exported (with intent to update and import) to update several beginning inventories, but some of the products in my test environment will not export. These are the ones that I have to go in manually and hit new in the inventory app in order to add or adjust stock. I cannot figure out the difference between products that appear on that export list and those that don't. I'm probably missing ticking a box somewhere, but I don't know which.