Hi, It really depends on how you intend to manage your items in the system. The selection of options in the Item Model Group should align with, Whether you want to track the item physically and financially If the item is a stocked inventory item or a non-stock/service item The inventory valuation method you plan to use (e.g., standard cost, FIFO, moving average) Whether you need to include the item in inventory value calculation and reporting For stock items, you’d typically enable physical and financial posting. For non-stock items like services, you usually don’t track inventory, so those options remain unchecked Zain