I am trying to find a way to list all the users setup as system administrator an

You can create a Group and add a Custom Rule to the Group to include all Members whose User Type = Administrator.

Hope that helps.

How can I add a custom rule to a group?

forum.appian.com/.../Group_Management.html
(View or Edit Group Membership Rules)

perfect. Thank you

@ajays If I understand your question correctly, implementing the isusersystemadministrator (present in plugin at https://forum.appian.com/suite/tempo/records/type/components/item/i0BWsQdLlzKy55h8z8zJ0sPqpDWFrba9l14mbyubY4XI6t1hRI7xLwkvHhqsuQ/view/summary) with the combination of looping function is a handy solution (and other way as well) to some extent and following is the way how we can use:

filter(fn!isusersystemadministrator(_),getdistinctusers(topeople())) => returns System Administrators

reject(fn!isusersystemadministrator(_),getdistinctusers(topeople())) => returns Basic Users

Thank you

This is very useful!

To find all system administrators, you can run the following expression:

=load(
local!designerUsers: getdistinctusers(getgroupbyname("Designers")),
local!adminUsers: apply(fn!isusersystemadministrator,local!designerUsers),
index(local!designerUsers,where(local!adminUsers),{})
)

The default Designers group contains all system admins by rule, but non-admin users can be added to the group so the second step is needed as a safeguard.