Should the action-id for the action in backoffice always start with "com.hybris.cockpitng.action.{myaction}", where {myaction} is the action name

I am trying to create a new action in backoffice for a custom widget. When I created the action with the action-id in the action's definition.xml as "org.myextension.widgets.actions.chatdelete", the image of this action was not displayed against the widget in the backoffice, but when i changed the action to "com.hybris.cockpitng.action.chatdelete" the image was displayed .

My query is should the action-id always start with "com.hybris.cockpitng.action.{myaction}", where {myaction} is the action name