I've got myself in a bit of a muddle with a key appearance. I have programmed our main line number as a key appearance on one set which call forwards always to an AA. Because of issue with the AA, I'd like to remove the key appearance an reuse the number for a huntgroup. However when I try to remove the appearance, I get a pop up reporting that "Users are associated with this Hosted Service" This is not a message I've seen before and I'm a little bit stuck on where to check where else this number will be referenced. This is MCD 4.1 SP1 on a MXe