The Subject API Diagnostics screen is an administrative screen for Grouper admins to troubleshoot and verify subject API sources.
This is on by default in a 2.3.0 patch or 2.3.1+.
Set this in the grouper-ui.properties to customize this enhancement
# should show subject api diagnostics?
uiV2.admin.subjectApiDiagnostics.show = true
# put in a group here if you want to allow the subject API diagnostics to certin users.
# note, admins can always see the screen
Go to the New UI, click on Miscellaneous, then click on "Subject API diagnostics"
If you have an account on the demo server you can see the diagnostics there:
Note: email attribute is not validated
SUCCESS: The emailAttributeName is configured to be: 'mail'
SUCCESS: The email address 'firstname.lastname@example.org' was found and has a valid format