Yammer? We had that. Microsoft-owned now isn't it? Chatter is the Salesforce equivalent. Neither is as good as the real Facebook for work: Workplace. Familiar facebook features but tweaked very effectively and securely for work use.
I still don't get how Yammer fits in with Microsoft Teams, which seems to be the same but they say they aren't. Well, except Teams is a blatant rip off of Slack.
Yammer = open by default, large groups of people, response time from others several hours, most people will just read. So broadcast comms, questions to large groups of people.
Teams = smaller groups of people who tend to collaborate on a specific topic or subject. Closed groups, limited to 600 users. Expect response in a few minutes. Most people will contribute. It's a group based persistent chat tool.
Part of the challenge is that people have historically used Yammer groups for what Teams does now. It's a cultural/behaviour change if people are using Yammer fir chat in small groups. Teams is much, much slicker and better for that.
(Disclaimer. I work for Microsoft and advise big companies on anything Microsoft at a high level. I can quite happily run a Teams demo/discussion including how it fits with Yammer, Skype for Business, email, Groups)
Frankly I'd put Yammer in for six months, then have a look back at the usage over that period during work hours and sack the top 10%.
Two reasons.
1. You can't be doing the work you're paid for if you are basically spamming people with all your bullshit 'achievements'.
2. You are clearly a trendy pillock.
