Meta ads term
What is Post ID (object_story_id)?
A reference to an existing Meta post used to run ads that keep their likes and comments.
A Post ID (the Marketing API field object_story_id, or effective_object_story_id for ads created from a post) lets you run a single underlying post as an ad across many ad sets — so all the social proof (likes, comments, shares) consolidates on one post instead of being scattered across duplicates.
This is the core of Post-ID scaling: duplicate a winner without resetting its engagement. Volume Creatives supports Post-ID scaling directly in the launch flow.
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