Use a public LinkedIn post URL that starts with linkedin.com or lnkd.in. The creation form checks the link format before it resolves a preview.
Paste the link and the form loads a preview card with the post title, description, site name and image. You can add an optional Mission title of up to 200 characters; leave it blank to use the linked post's title.
If the preview cannot be loaded, the form shows that no preview is available. You can still publish the Mission, because the preview is display-only and does not change the participant experience.
The link is resolved to its canonical URL before the Mission is created, so every participant opens the same post.
