Can the Job's "Enable Expiration Date" Affect Previously Archived Messages

If I create a new job (or modify an existing one) and enable data expiration (Core Settings tab), will this affect previously archived items?

It will only affect previously archived items if the scope of the profile is set to process all messages regardless of date; otherwise, it will only affect items since the item store flag or retention flag (whichever one is getting used).

This article was originally published in the GWAVA knowledgebase as article ID 2351.