If your Office 365 for business plan includes Yammer, you can use the Yammer app on your Android device to stay connected with your network.
Set up and use the Yammer mobile app
Set up Yammer with your work or school account
If you don't have Yammer installed, download it from the Google Play Store
Type your Office 365work or school account email address and password. Tap Log in.
Use Yammer to stay connected with your network
Edit your profile To add or update your profile, tap More > Accounts > My Profile. Then tap the section you want to edit.
Follow a conversation Tap the conversation to open it. Then tap More > Follow.
Add a post Tap to add a new post, and then tap Send .