While creating a Facebook Ad Campaign in the Ads Composer, you can search for existing creatives by entering their Permalinks in the Creative search. Using the Post Permalink, you can trigger a simultaneous search across both Posts and Ad Creatives and filter your customized content.

Below are the supported formats for permalinks:

• https://www.facebook.com/[PAGEID]/posts/[POSTID]

• https://www.facebook.com/[PAGENAME]/photos/[ALBUMID]/[PHOTOID]

• https://business.facebook.com/[SHORTENEDPAGEID]/posts/[POSTID]