Currently Sage 300 2017 is configured with SQL 2016 version. IT want to upgrade SQL 2016 to 2019 version.
Is it supported?
Not officially. This is from the compatibility guide:
Microsoft SQL Server 2012, 2014, 2016 or 2017 on Windows Server 2012 R2 2016 or 2019 are supported for use as the database server for Sage 300 2019
*Community Hub is the new name for Sage City