We are just about to migrate to Lightning. I noticed that archived activities (which are now available in Lightning since Winter 18 release) do not show up in the activity timeline on the object page. You have to select "View All" in order to see the archived activities.

The reason this is an issue for us is we have old accounts that have not been contacted in over a year and when a rep is accessing their account, it looks like there is no activity. This is an issue for us because our territories are based on legacy (ie if a sales manager has established contact, they maintain control of the account).

An account was incorrectly assigned today because the rep didn't see that another sales manager had established contact with the account last year but the rep saw the "No Past Activity" and didn't know to click "View All" to see the archived activities. Is there anything we can do? Or is this just a training issue? Thanks in advance