Object limits. %BRAND_AAD_CONNECT_SHORT%, the tool used to configure and run directory synchronization, requires a SQL Server ...

Object limits. %BRAND_AAD_CONNECT_SHORT%, the tool used to configure and run directory synchronization, requires a SQL Server database to store identity data. By default, SQL Server 2012 Express LocalDB is installed by %BRAND_AAD_CONNECT_SHORT%. SQL Server Express has a 10GB size limit that enables you to manage approximately 100,000 objects. If you need to manage a higher volume of directory objects, you need to point the directory synchronization process to a different version of SQL Server. To learn more, see Prerequisites for %BRAND_AAD_CONNECT_SHORT%.