Reach refers to the number of people who see your content, while Impression refers to the number of times the content is displayed. For this reason, Reach may often be lower than Impression as the same person can see the same post more than once (for example, if two friends share the same content). Engagement refers to the number of interactions people have with your content, such as likes, comments, shares or retweets.
Modified on: Mon, 3 Apr, 2017 at 11:40 AM
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