Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

Couldn't delete user. A firewall rule, VPN connection, web policy rule, or SSL/TLS inspection rule exists for this user.

So today I needed to export the whole config again to find the user I could not delete was in Wireless > Hotspots

Administrative users
of one or more Hotspots.
This is really PITA - the export configs takes ~5 minutes to prepare the tar file.

 Couldn't delete user. A firewall rule, VPN connection, web policy rule, or SSL/TLS inspection rule exists for this user. 

There is still no reference in the user list just like you have brought us with references for hosts and services which a really useful upgrade in usability.

Is this about to come eventually?