I have bumped into an old post about this exact question and it was dated at 2016(4 years ago), then it seems to be someone else tried to revive the post at 2018(2 years ago), now here I am wondering why am I supposed to move my items from Character To Inventory > Modify them > Then Put it back to character. That is extremely inefficent. Just trying to take your attention so in 2022 someone else can revive these post. Original Post : https://community.playfab.com/questions/627/208220377-ModifyItemUses-on-an-item-in-character-s-inventory.html