If you want to implement your own Inventory Loader to, for example, add Products from something inside your module? That’s easy! Create a file <customname>.inc.php in the folder modules/Workflow2/extends/inventoryloader/ This file must have the following structure: [prism field=file language=php] [vc_table]LOADERKEY,internal%20key%20of%20your%20loader%20to%20be%20able%20to%20register%20multiple%20loader|LOADERLABEL,Visible%20Label%20of%20Inventory%20Loader|LOADERCONFIG,Config%2C%20visible%20if%20Loader%20of%20selected[/vc_table] The CustomClassName could be chosen like you want. It only must equal in class definition…