Aug 16
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One of the most efficient types of targeting in Facebook (second to retargeting, of course) is lookalike audience targeting. Lookalike targeting is basically a targeting type that allows you to use first party data (e.g. customer lists, remarketing lists, etc.) as a seed audience to find new users with very similar characteristics, behaviors, and traits.
Read this article:
Facebook’s Lookalike Audiences for ecommerce: segment before you build