This is the simplest configuration. With the embed functionality, you are carving out a space in an existing web page and then inserting a code snippet that renders content from a remote site (in this case, Yammer) on the current page. In order to embed a Yammer group, you need to insert the embed code from the Yammer group's page in a SharePoint site page. To configure this, follow these steps:

1. Navigate to the Yammer group that you wish to embed on a SharePoint server page.
2. Scroll to the bottom of the page and, under ACCESS OPTIONS, select Embed this feed in your site:

3. In the pop-up window, select the code and copy it:

4. Navigate to a page where you want to embed the Yammer group and edit the page.
5. Select a place to place the content. On the Insert tab of the page, select Embed code.
6. Paste the code and save the page.