Grafana 6.7 + MySQL 8.0 or MySQL 5.7

We are in the process of moving from LDAP to Azure AD. Our Grafana Azure application server has MySql 8.0 installed, but the Azure database is MySql 5.7. In the ini file, I have updated the database connections. when attempting to restart the grafana service, it pauses and there is an error.
From looking through other support, it appears that it would be best to downgrade the MySql to 5.7.