This issue occurs because Azure DevOps Server 2022 requires a specific SQL Server collation, and the error appears when the Azure DevOps databases use an unsupported or newer SQL collation (commonly after upgrades to SQL Server 2022 or Azure DevOps Server 2022). When creating a team, Azure DevOps executes internal SQL operations that depend on this required collation. If the collation does not match what Azure DevOps expects, SQL Server returns Error 448, causing team creation to fail. This is not related to user permissions and can happen even to Project Collection Administrators.
Resolution:
- Azure DevOps Server 2022 supports only the SQL collation
SQL_Latin1_General_CP1_CI_AS. - Manually changing the collation of existing Azure DevOps databases is not supported and can cause data corruption.
- Take a full backup of all Azure DevOps databases.
- Install or rebuild SQL Server using the supported collation
SQL_Latin1_General_CP1_CI_AS. - Reinstall and configure Azure DevOps Server 2022.
- Restore the databases after reconfiguration.
You can post your issue with Azure Devops Server Developer community to get assistance from Devops team here: https://developercommunity.visualstudio.com/AzureDevOpsServerTFS?ftype=problem&preview2=true
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