User XP

Next page function in the User Postal doesn't work anymore

After the last browser updates in December 2018 the next-page-function in the user portal (community edition) doesn't work anymore. Instead of the script-code for the buttons (which I get when I use the IE Version 11)

How can initiator see how many steps are left in process in User XP?

Is there a way for a user to see, for the requests they submitted, where and/or how many steps remain?