An administrator is upgrading vCenter Server and sees this error: - The DB User entered does not have the required permissions needed to install and configure vCenter Server with the selected DB…

When the SQL Server database is configured with an unsupported compatibility level (for example, an older SQL Server compatibility mode), the vCenter installer cannot execute the required schema and stored procedure operations, producing this permissions-related error even if the account itself has been granted privileges.

The error message explicitly states the DB user does not have the required permissions, meaning the database account has not been granted the necessary roles such as db_owner or specific DDL permissions needed by the vCenter installer to create and configure the schema.

The error refers specifically to database-level permissions for the DB user, not to vCenter Server application-level or Windows service account permissions.

If the database server service had stopped, the installer would return a connection failure or timeout error, not a permissions-related error message.