[Answer]-Django CMS using 2 PlaceholderFields outside cms

This situation is described in documentation at http://docs.django-cms.org/en/3.0.1/extending_cms/placeholders.html

If you add a PlaceholderField to an existing model, you’ll be able to see the placeholder on the frontend editor only after saving each instance.

I need to save every model instance before using newly added placeholders.