Important information for Office 365 Enterprise E4 customers

The Office 365 Enterprise E4 plan has been retired. However, if you have a current subscription to Office 365 Enterprise E4, this change won’t affect you right away. As a global Office 365 admin, you’ll receive email updates and see posts in the message center (part of the Office 365 admin center) with information on when you need to take action. In the meantime, you can renew your subscription and add more licenses as usual.

When you are ready to move to a new plan—either now or during renewal—you’ll have four options.

Compare your options for upgrading or switching plans

You can choose to maintain the same functionality you had with E4 or take advantage of new features and functionality from Office 365 and Skype for Business Online.

Option 1: Switch to Office 365 Enterprise E5

Option 2: Switch to Office 365 Enterprise E3 + Phone System

Option 3: Switch to Office 365 Enterprise E3 + Skype for Business Plus CAL

Option 4: Switch to Enterprise E3

Get all of the services and functionality included in your current Office 365 Enterprise E4 subscription   

Yes

Yes

Yes

No

Phone numbers managed in Office 365   

Yes

Yes

No

No

Phone numbers managed both on-premises and in Office 365 (hybrid deployment)    
Reduce reliance on costly private-branch exchange (PBX) phone systems and simplify your communication infrastructure with one platform for calling, conferencing, video, and sharing.

Yes

Yes

No

No

Option to add Calling Plans in Office 365   
You can add licenses for a Domestic Calling Plan or an International Calling Plan. Learn more about Calling Plans for Office 365.

Yes1

Yes1

No

No

Audio Conferencing   
Meeting attendees can dial in to Skype for Business meetings from virtually any device, and organizers can dial out to pull attendees in.

Yes2

No

No

No

Advanced tools for collaboration, analytics, and security   

Yes

No

No

No

New interactive reports, dashboards, and data visualizations   

Yes

No

No

No

More control over your data security and compliance with built-in privacy, transparency, and refined user controls   

Yes

No

No

No

1Calling Plans in Office 365 are available if your organization has a billing address in the United States or Puerto Rico. You’ll have the option to add a Domestic Calling Plan or an International Calling Plan when you upgrade to Office 365 Enterprise E5, or if you purchase Phone System in Office 365.

2Audio Conferencing isn’t available yet in all regions. If Audio Conferencing isn’t available in your region, we'll update you when it becomes available. At that time, Office 365 Enterprise E5 customers can upgrade to an Office 365 Enterprise E5 subscription with Audio Conferencing immediately or wait until it's time to renew. To see what regions support Audio Conferencing, go to Dial-in numbers and supported countries or regions for dial-in conferencing.

Option 1: Switch to Office 365 Enterprise E5

This option is ideal if you want to take advantage of the new functionality that Office 365 Enterprise E5 has to offer. To learn more and get pricing info, see Office 365 Enterprise E5.

If you switch to Office 365 Enterprise E5, you’ll have the option to add a Domestic Calling Plan, or an International Calling Plan. Adding a Calling Plan lets your users route calls made in the cloud through Office 365.

How to upgrade to Office 365 Enterprise E5

You can switch to Office 365 Enterprise E5 now, or wait until it’s time to renew and upgrade during the renewal process. Either way, you’ll work with your account representative or partner to make the switch, unless you bought your subscription directly from Microsoft, in which case you can switch to Office 365 Enterprise E5 yourself in the Office 365 admin center.

If you bought your subscription directly from Microsoft and you want to switch now, see Switch from Office 365 Enterprise E4 to E5. You won’t lose any data when switching from E4 to E5.

Option 2: Switch to Office 365 Enterprise E3 + Phone System in Office 365

If you already have a hybrid deployment using Office 365 Enterprise E4, you can switch to Office 365 Enterprise E3 with the Phone System in Office 365 add-on. This option allows you to maintain the functionality you had with E4, and take advantage of cloud-based phone number management solutions from Skype for Business Online. Your organization will gain the capability to manage phone numbers both on-premises and in the cloud. Additionally, the Phone System in Office 365 add-on enables your Skype for Business users in the cloud to make calls using on-prem PSTN gateways.

When you buy Phone System in Office 365, you can also add a Domestic Calling Plan, or an International Calling Plan. Adding a Calling Plan lets your users route calls made in the cloud through Office 365.

How to switch to Office 365 Enterprise E3 and add Phone System in Office 365   

When it’s time to renew your subscription and Office 365 Enterprise E4 is no longer available to you, you’ll be able to switch to Office 365 Enterprise E3 and add Phone System in Office 365, with the option to add a Calling Plan, as part of the renewal process. If you don’t want to wait until renewal, you can choose to switch now. Either way, you’ll work with your account representative or partner to make the switch, or—if you bought Office 365 from Microsoft directly, online—do it yourself in the admin center.

If you bought your subscription directly from Microsoft and you want to switch now, see Switch from Office 365 Enterprise E4 to E3. You won’t lose any data when moving from E4 to E3.

Option 3: Switch to Office 365 Enterprise E3 + Skype for Business Plus CAL

Choose this option if you want to maintain exactly what you have with Office 365 Enterprise E4 without adding any additional functionality or features. Your current Office 365 Enterprise E4 subscription includes licenses for the Skype for Business client, as well as the licensing rights to everything in Office 365 Enterprise E3. By moving to E3 and adding Skype for Business Plus CAL, you’ll get what you have today with E4.

Note: When you purchase Skype for Business Plus CAL add-on, you won't need to assign additional licenses to your users. Your subscription will be listed as an add-on in the admin center under Subscriptions. However, you won't see it under Licenses or in user settings. Your users will only have the Office 365 Enterprise E3 license assigned.

How to switch to Office 365 Enterprise E3 and add Skype for Business Plus CAL   

When it's time to renew your subscription and E4 is no longer available to you, you’ll be able to switch to Office 365 Enterprise E3 and add Skype for Business Plus CAL as part of the renewal process. If you don’t want to wait until renewal, you can choose to switch now. Either way, you'll work with your account representative or partner to make the switch, or—if you bought Office 365 from Microsoft directly, online—do it yourself in the admin center.

If you bought your subscription directly from Microsoft and you want to switch now, see Switch from Office 365 Enterprise E4 to E3. You won’t lose any data when moving from E4 to E3.

Option 4: Switch to Office 365 Enterprise E3

Choose this option to keep everything you have with Office 365 Enterprise E4, however you will lose your license to Skype for Business clients for on premise deployments.

How to switch to Office 365 Enterprise E3   

When it's time to renew your subscription and E4 is no longer available to you, you’ll be able to switch to Office 365 Enterprise E3 as part of the renewal process. If you don’t want to wait until renewal, you can choose to switch now. Either way, you'll work with your account representative or partner to make the switch, or—if you bought Office 365 from Microsoft directly, online—do it yourself in the admin center.

If you bought your subscription directly from Microsoft and you want to switch now, see Switch from Office 365 Enterprise E4 to E3. You won’t lose any data when moving from E4 to E3.

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