Yammer user management via powershell
Yammer user management right now limited to a very slow/limited gui. The only way to block users is to manually block via admin console which is exceptionally slow when you have 100's of contractors and cumbersome. To unblock users requires you to expand a giant list to it's entirety in order search.
Please add powershell cmdlets for adding/removing users from Yammer Groups, Auto-inviting to groups, blocking/unblocking users, and bulk add user options for global 365 admins.
Jose Ramirez commented
You should add the ability to bulk update user notification settings.