It is possible that connection may be lost to the Altium 365 platform while working due to a number of reasons; ie. service provider outage, server outage, temporary disconnects. This Article discusses how this is handled from the server perspective.
You will be able to continue working on your projects on your workstation that you have checked out since Altium 365 uses distributed GIT repositories. All changes made to the local versions can be committed to Altium 365 as the user chooses. This means, the changes can be pushed to Altium 365 when the internet connection is reestablished. Managed components and managed content will be unavailable for placement when disconnected from the workspace with the exception of some components that have been cached on the workstation. Use components with caution while disconnected from the workspace.