Depending on whether you are viewing a conversation in your Inbox or a team inbox, the archive option will differ.
Archive from my inbox clears a conversation from your own Inbox only. If some of your teammates have that conversation in their Inbox, archiving it from yours will leave it in theirs. Once archived, conversations can be found in the All mailbox.
Archive from team inbox clears a conversation from the conversation’s Team Inbox for all of the team users. Once archived, conversations can be found in the All mailbox.
Closing a conversation is in relation to an assignment.
When a person closes a conversation, all their coworkers can see the following effects:
- If the conversation was assigned, it is removed from Assigned to me and Assigned to others.
- The conversation ends up in Closed, which can be less noisy than the All mailbox to find conversations someone in your team acted on recently.
If a conversation in a team inbox does not need to be assigned, it is more efficient to archive it, rather than closing it.
This assignment reference guide explains how you can best use these mailboxes.
Does closing automatically archive from my inbox or the ones of my colleagues?
It depends. For the person who closes, the conversation does get archived from their personal Inbox automatically. For coworkers, closing will leave the conversation in their Inbox unless they changed the personal option “When a conversation in my Inbox gets closed or assigned to someone else” to “Remove from my Inbox” in the Organizations settings tab.