Hi @LukeF1   So sorry your contacts were added to the wrong list! Do you have these contacts isolated in a list or a file of their own? While there is no undo button in our system, there is a simpler workaround you can try. If you have a file with these contacts separated, I would suggest uploading them into a new and separate list in your account. Once they are in a list of their own you can remove these contacts from the list they were accidentally added to. I hope this helps. ... View more