<filename>user_mgmt/admin.py
from django.contrib import admin
from .models import AnonymousParticipant
# Register your models here.

admin.site.register(AnonymousParticipant)

<filename>user_mgmt/admin.py
from django.contrib import admin
from .models import AnonymousParticipant
# Register your models here.

admin.site.register(AnonymousParticipant)

# Register your models here.