When Veeam Backup & Replication 9.5 was released, there where a lot of significant features added to enhance Veeam Cloud Connect Backup and Replication. One of the lesser known features that came out in 9.5 was the addition of Cloud Connect Subtenants. This in effect was a pre-seeded feature for our Veeam Agent for Microsoft Windows that went into public beta earlier in the year and is set to GA sometime in Q2 of 2017.
Subtenants can be configured by either the VCSP or by the tenant consuming a Cloud Connect Backup service. Subtenants are used to carve up and assign a subset of the parent tenant storage quota. This allows individual agents to authenticate against the Cloud Connect service with a unique login allowing backups to Cloud Repositories that can be managed and monitored from the Backup & Replication console.
End users on the tenant side can connect to the SP and create backups on the cloud repository under the tenant account. However, it is recommended to provide every tenant-side user with a separate subtenant account. In this case, the tenant or SP can allocate storage resources on the cloud repository individually for every subtenant so that subtenants’ data is stored in the cloud in an isolated and segregated way
Note that a subtenant account can not be used to connect directly to a Cloud Connect Service Provider from the Backup & Replication console and is only intended for use with the agents. If you try to do that you will see the error below: