Action Details
Requirements and how-to articles for YouTube's action:

Community Post (Playlist)
Create a Community playlist post. (If your account has at least 1000 subscribers.)

Requirements
You need this to get it done:

YouTube Video Playlist
Select a YouTube video playlist to use for your post.
Text
A short description to go alongside the shared video.
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How-To Articles
A list of useful links for you:

0
YouTube Help - Engage viewers with Community posts
Information on how to create Community posts.
Official
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