No one can delete your message unless yourself and if you delete a message following the KB here it will show that the message has been deleted.
Additionally, if you notice that your message is gone from a few day backs, there's probably because your group admin setting your history retention to 30 days or you are using basic plan which limits your view message up to 25,000 messages only.
Hope this clarifies.
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 a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs