A user can only be in one group in HipChat, so you would need to remove the user from their current group before you can add them to the new group.
A work-around for this is to use a different email address for each group. You can find more info here - https://confluence.atlassian.com/hipchatkb/how-do-i-have-one-account-be-a-member-of-multiple-groups-755337839.html
All good things come to an end - thanks to all our customers and partners who have been along the Hipchat and Stride journey with us. As of Feb 15th 2019, Hipchat Cloud and Stride have reached ...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event