Office 365 for business – Admin Help

Top admin articles

Automatically fix Outlook issues (English only)

Troubleshoot email issues

Buy licenses for your Office 365 for business subscription

Reset your administrator password

Buy a subscription from your free trial

Cancel your subscription

IT Pro resources for enterprises

Are you an IT Pro in an enterprise organization? We have content for you here: Enterprise organizations and Office 365.

More solutions

Expand a section below to get help with common admin tasks.

Troubleshoot problems

• Common Exchange Online and Office 365 NDRs or Office 365 DSNs that you may encounter

• Problems with your Office 365 for business product key?

• Troubleshoot installing Office and Office 365

• Office 365 Email Anti-Spam Protection

• Fix OneDrive for Business sync problems

Get started with admin tools

• About the Office 365 admin center

• Download and use the Office 365 Admin Mobile App

Popular videos for admin tasks

• View admin videos

• What Office 365 for business subscription do I have?

• Figure out how many licenses are available

• Switch to a different Office 365 for business plan

Stay informed

• Need to know what new features are coming to Office 365? See the Office 365 Roadmap.

• Find out what's new in the Office applications. Read What's New and Improved in Office 2016 for Office 365.

• Are there changes coming to Office 365's service that you need to know about? See the Message Center in the Office 365 admin center.

• Want to stay on top of issues or deal with resetting user passwords from your phone? Download and use the Office 365 Admin Mobile App.

We're here to help!

As an admin for Office 365 for business, you get free access to our knowledgeable support agents. If you don't find the information you need on this web site, CONTACT US!