Post ID vs. Creative ID: which relaunch strategy to choose

When you relaunch ads you already have in your account, the new ads can be built in two ways. The choice comes down to a single trade-off: do you want to keep the existing post's social proof, or start with a clean slate? This article explains the two strategies, how the Ad Launcher picks one for existing ads, where you choose per asset, and how Advantage+ ads behave differently.

If you haven't found the relaunch flow yet, start with Relaunch existing ads into new ad sets. You pick the ads in the Load Media dialog under Existing Ads; they then sit in the Ads panel as Existing ads to relaunch, with Edit Selection taking you back to the picker.

The two strategies

Post ID rebuilds each new ad from the original Facebook or Instagram post. Because every new ad points at the same post, its likes, comments, and shares carry over. This is the social-proof option: your relaunched ad starts with whatever engagement the original already earned.

Creative ID reuses the existing ad creative on Meta. The ad content is the same, but the new ad has no shared post behind it, so likes, comments, and shares start at zero. A New ad built fresh from the file behaves the same way.

How uplads picks the strategy for existing ads

When you select an ad in the Existing Ads tab, uplads detects the sensible method for it and records it with the selection:

• Ads whose post Meta can reuse get Post ID.
• Advantage+ image ads have no single reusable post, so they get Creative ID.
• Multi-format and multi-placement ads get Creative ID as well; they can't be rebuilt from one post.

There is no per-row switch for existing ads in the launcher; the detected method ships with the launch. If Post ID was chosen for an ad whose post Meta refuses to rebuild after all (a catalog or Advantage+ source, for example), the worker falls back to reusing the source creative. The new ad still renders the same post, so engagement carries over, but Ads Manager shows the creative editor instead of "Use Existing Post". The launch view reports this as Post ID applied via shared creative for the affected ads, so you know exactly what happened.

Choosing per asset for library media

The choice is yours when you launch media that already ran as an ad. If a file in the Ads panel has a post behind it, the panel shows an Ad Source section with one row per such asset:

• A row that ran here before reads, for example, "Ran 3 Mar in Prospecting" and offers New ad, Post ID and Creative ID.
• A file imported from an organic post through FB / IG Posts reads "From a Facebook post" and offers Boost post, preselected, because there is no prior ad to reuse.
• Assets inside a placement group, a carousel or a flexible ad are locked to New ad; an ad assembled from several creatives is always built fresh. Split the asset into its own ad if you want to reuse its post.

The section folds away when you don't need it and has a Refresh ad sources button if the account changed since you loaded the media.

When to use each

• Use Post ID when the original post has earned real engagement you want to keep: proven creatives, retargeting variants, or any ad where comments and reactions add credibility. All new ads share one post, so engagement pools across every ad set you relaunch into.
• Use Creative ID or New ad when you want a clean start: a brand-new test, an ad whose old comments you'd rather leave behind, or a multi-format / multi-placement ad that can't be rebuilt from a single post.

Be honest with yourself about engagement: Post ID keeps it, the other two reset it. There's no way to copy likes onto a brand-new post.

When you're happy with the selection, click Launch N Ads and confirm. For the wider walkthrough, see Relaunch existing ads into new ad sets.