All add-on products must be assigned to at least one department before you can Save the draft (and make it live.) In the initial set up the full list of available departments will be available for selection. If a product is to be visible in multiple departments, check each one.
After the product set up you can edit the department selections by clicking ON the name Departments to display the full list again.
CSA shares will present as Shares, no need to select a department.