Veeam ONE: Impossible to upgrade to version 11 because the upgrade process find unsupported veeam B&R version

Issue

A customer of mine fails to update Veeam ONE from version 10.0.0.750 to the latest version 11. He encounter the following error message "Veeam ONE database has one or more unsupported Veeam Backup & Replication servers. This product supports Veeam Backup & Replication 9.5 Update 4 or later."

Solution

I tried to see if there were any objects or configurations prior to version 9.5 but I didn't find anything.
The problem encountered may occur when the VBR server, added to Veeam ONE was upgraded before the Veeam ONE upgrade, so automatic upgrade is not possible.
Anyway, there is a workaround for this situation, suggested by veeam support. Is a manual product update.
To solve, follow the instructions below:

1. Make a backup of Veeam ONE database: https://www.veeam.com/kb1471 and then uninstall Veeam ONE on the server completely.

2. Install Veeam ONE v11a with the local database (SQL server express will be installed on the server)

3. After the installation, execute the script from the folder: ISO: Addins\SQLScript\VeeamOne.sql. against the existing Veeam ONE database (on the production SQL server: https://www.veeam.com/kb2312 )

4. Once the script is executed, change the database name in Veeam ONE settings and restart the services as described in the following article: https://www.veeam.com/kb1592

Thanks, to the guys at veeam support.

That's it.