How to Enable or Disable Archive Mailbox in Office 365 using PowerShell
Enable Office 365 Exchange Online Archive
Using Office 365 online archiving and retention policies
Exchange Online Archive: What is the purpose of the FolderName? I'm unable to find any docs on this. I don't see this name anywhere in the mailbox or the archive mailbox. :
Enable Office 365 Exchange Online Archive
Know how to enable/ disable online archive in office 365 mailbox
Beware the effects of enabling an Exchange 2010 archive mailbox | Thoughtsofanidlemind's Blog