FL migration package WinCC/Web Navigator V7.4, 10-client licenses (countable), option for WinCC V7.4 or higher This is a special offer and is valid if you replace the previously used product FactoryLink with the product WinCC V7.4. By purchasing this product you obligate yourself to replace the previously used product FactoryLink (after a transitional period of 12 months after receiving this product), with WinCC V7.4 and to no longer use the FACTORYLINK license. For customer with SUS contract