The Deduplication skill removes duplicate articles from feeds and keyword alerts.
This Leo skill is already activated for all of your feeds. It is running in the background of your account, removing any near-exact duplicate articles.
When Leo removes duplicates, you will see a small gray box at the bottom right-hand side of your feed that shows you how many duplicates have been removed. You can see the total number of duplicates removed in the Analytics tab of your feed.
Note: Deduplication doesn't work in 3rd party apps using Feedly as a backend sync service.