Shared computer activation lets you to deploy Office 365 ProPlus to a computer in your organization that is accessed by multiple users.

In our case we have a RDS server that many users log onto as it has an old application still needed so also needs Office.

Shared computer activation gets enabled during the installation of Office 365 ProPlus, Project Pro for Office 365 and Visio Pro for Office 365 using the Office Deployment Tool. Once enabled, Office installs without being activated. When a user signs in to a computer with Office installed via shared computer activation, Office will check to see if the user has been provisioned for Office 365 ProPlus and temporarily activates Office 365 ProPlus. If a second user signs in to the same computer, the activation does not persist from the first user and process is repeated.

It’s also important to note that deploying Office 365 ProPlus using shared computer activation does not count against a user’s five total installations of Office 365 ProPlus or Office for Mac.

This is the config.xml we have implemented (o365 files already downloaded).