Note: Some functionality is introduced gradually to organizations that have opted in to the Targeted Release program. This means that you may not yet see this feature or it may look different than what is described in the help articles.
You can share a page to a Yammer community using the full experience of Yammer conversations including a rich preview for media as well as visual treatment for questions, praise, and polls. You can also add images and add rich text to the message.
On your SharePoint page, select Send to at the top of the page.
In the Send to Yammer box, add a message to start the discussion about the page.
Tip: To format your message, select the Show formatting toolbar button at the bottom of the Send to Yammer box.
Under the rich preview of the page, select Add community and select the Yammer community you want to share to.
Optionally, you can add discussions, topics, attachments or gifs using the toolbar at the bottom, and send the post as a praise, question, or poll.
When you're done, select Post.
Once you've posted, you can view your post in the Yammer community you shared to.