This question was asked already several times , please make sure you search prior to asking (it is a forum rule) Try it with: LX17 after or LX17 report or WM difference report
LX17 can only be execute before you close the inventory
alternative difference lists in WM are LX18 and LI15.
But LX17 only works before the inventory document is cleared.
LX18 does not show material differences only bins.
If you want something like LX17 after the inventory is closed then you have to develop it yourself