Forum Discussion
How to Get Conversations (Yammer) Web Part to work on Classic Site
We have our main SharePoint site that has many doc libraries, and subsites and subsites for a few years now. Modern wasn't available when they were all created so have kept them all as Classic. ...
luvsql There is no way to use the Modern Yammer Web Part on a classic SharePoint page.
Your only option if you are keeping classic, would be to include a Yammer feed by embedding it in a Script Editor Web Part.
This is outlined in the Yammer Integration Documentation https://docs.microsoft.com/en-us/yammer/integrate-yammer-with-other-apps/embed-a-feed-into-a-sharepoint-site