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Shared Computer Activation (SCA) for Office 365 ProPlus

Why CPA Firms Need Secure IT Support for AI Tools

Artificial intelligence is creating new efficiencies across the accounting industry. But for many firms, the bigger question isn’t whether AI should be used—it’s how to do so safely and effectively..


September 05, 2025

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❝ We use two programs that often posed a challenge for our previous IT providers. Cetrom handled the situation professionally, coordinated with the software vendors, did all the backend testing, and..

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What is Shared Computer Activation (SCA) for Office 365 ProPlus?


 

In September 2014, Microsoft enabled Shared Computer Activation (SCA) mode in Office 365 so that multiple Office 365 ProPlus users can share the same hardware in the following three scenarios:

  • Customer dedicated self-hosted (on-premise)
  • Dedicated third-party hosted
  • Windows Azure environment

What Office versions support Shared Computer Activation?

Shared Computer Activation mode works with enterprise versions of Office 365 (ProPlus and E3).

Benefits of Shared Computer Activation for Office 365 ProPlus

The main outcome of SCA for Office 365 ProPlus is that it gives customers choice and flexibility. SCA allows customers to take advantage of existing Office 365 ProPlus licensing investments when deploying to the cloud.

Customers are able to make a deployment choice between on-premises and any authorized Service Providers’ shared datacenter to help lower cloud infrastructure costs by letting Cetrom use your existing Office 365 ProPlus licenses. Cetrom is a qualified Multitenant Hoster (QMTH) authorized by Microsoft to host your Windows virtual machines via Microsoft Cloud Agreement subscription or Enterprise Agreement/MPSA on dedicated or multitenant hardware.

You can work with Cetrom to take advantage of SCA for Office 365 ProPlus. Cetrom is an approved SCA for Office 365 ProPlus Program provider, allowing us to deploy your eligible Office 365 ProPlus licenses to your chosen cloud infrastructure solution.

Talk to a Cetrom representative to learn more about Shared Computer Activation.

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