Location control should be used with caution and only if there are solid business reasons for doing so. Multiple location control (MLC) adds transactional overhead that is generally not required by every inventory business. With MLC turned on, every inventory transaction to/from an item site will require users to select from a detailed list of item site locations. This type of granular control is necessary for some businesses. However, many companies will find that storing inventory in an item site (without locations) is sufficient.