Existing Office 365 SMB Customers Can Change to the New Plans

Over a year ago, Microsoft made major changes to its Office 365 plans for small- and medium-sized businesses (SMBs). But now, 15 months later, existing Office 365 SMB customers can finally switch their old plans to one of the new plans.
If you’re a long time Office 365 SMB customer, as I am, this change can be confusing. When Microsoft first introduced its Office 365 SMB offerings, there were three plans:
Office 365 Small Business. At a cost of $5 per user per month ($60/year), this offering provided the core Office 365 cloud services—Exchange Online-based email and calendaring with 50 GB of storage, SharePoint Online-based cloud storage and file sharing, Lync Online- (later Skype for Business-) based online meetings, IM, and video conferencing, Office Online, and more. It was originally capped at 25 users.