Yammer Hashtag Bug

Whilst my work has been getting a little excited about the summer party, I was having a look around the hashtag feature in Yammer and what we can do with it.

One of the cool things Yammer does when you use a hashtag, it creates a topic which gives it a feed ID (so cool) so you can then setup a feed on a page that draws certain hastags from yammer.

With the page it creates, you’re given the option to change the name of the topic. As a hashtag cannot have spaces, it would seem like this would be a good way to make some hashtags make more sense, especially if you’re using acronyms.

The unfortunate truth is, if you change the name of a topic created by a hashtag it then breaks all of the uses of the hashtag in posts. Posts just show “#undefined” where your hashtag once was.

If you have changed the title of one of these topics, to get your hashtags working again you just need to change the group title back to what it was and the hashtags in posts will work again.


Don’t change the name of topics created from hashtags in yammer, if you do and your hashtags may break or act strangely, simply change the name of the topic back for your hashtags to work again


Updated : 30/08/16

Adding page specific yammer feed


So, a lot more projects I’m working on involves yammer, whether its being the entire feed, a count of notifications or page specific feeds.

Page Specific code can be found Here

The code I’ve included is fairly simple but adding this into a page layout will let you have a feed on each page created from the layout which will be personal to that page. Adding in the “defaultGroupId” to the config will allow you to have the feed default to a specific Yammer group, this can be useful for news if you want a specific news yammer group.

To get the GroupId, open up the group on yammer, in the url of the page you should have a number at the end and this is what you will need to add into the config.

config: { defaultGroupId: 3257958} });

Hope this helps!