Enrollment Profile in ABM.

I'm trying to configure an Enrollment Profile in Apple Business Manager (ABM) to control supervision settings for my devices.

When I assign devices to my MDM server in ABM, the option to create a new Enrollment Profile or edit an existing one is not available—it's completely missing from the interface.

I need to modify the supervision settings (enable Supervised mode) via the Enrollment Profile in both ABM and my MDM, but the entire Enrollment Profile section/feature does not appear.

Has anyone else encountered this issue? Any ideas what might be causing the Enrollment Profile option to be hidden or unavailable?