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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