If you've included a link in your post, a link preview will be automatically generated in the Buffer composer if you’re scheduling the post for Facebook and LinkedIn. You can learn more about link previews here.
However, if you are linking to a Facebook or Instagram post (such as sharing your latest Instagram post to your LinkedIn page), you might notice Buffer is not generating a link preview for these. In the past, we were able to create those link previews, but this is no longer available due to changes we’ve made to stay aligned with Facebook’s Data Policy. We're sorry about this limitation. We're keeping a close eye on Facebook's guidelines to see if this changes in the future.