We are a manufacturing organization that has several items in inventory. However, we also make items custom for our customers. We are in the process of upgrading to D365, and looking to understand best business practice for indicating if an item is in inventory or being held being manufactured upon order. Several suggestions have been discussed internally, but we are not the only manufacturing organization that has this, so want to understand what Microsoft suggests for this practice. An added twist, sometimes we change an item from being inventoried to being manufactured on demand, and also from being manufactured on demand to being inventoried. So, the solution has to be flexible allowing for the item to be changed over time as these decisions are made. Thank you for your advice.