In Outlook 2013, is there a way to run AutoArchive immediately?
Solution 1:
Is the manual archive option what you're looking for? If so, it's available from File / Info / Cleanup Tools / Archive:
Solution 2:
I'm sure you already found the answer to this.
But for others that may be looking.
FILE -> MAILBOX CLEANUP -> MAILBOX CLEANUP -> AUTO ARCHIVE
This will start the process immediately.