OK, here is my setup, i will then explain what im trying to achieve:
I have a content type of DELIVERY another content type of BOOK and another content type of FEEDBACK
Now, any given user can have anywhere from 1 to 12 DELIVERY content types created (these are created using Rules automatically when they sign up). I use the Node Reference field to attach a BOOK to the DELIVERY content type, if the user has more than 1 delivery content, i will be attaching different books to each delivery content each month. When i attach a book to the users delivery, they can then create a FEEDBACK content to leave feedback under that particular DELIVERY.
So for example,
User 1 - Delivery 1 - Book 1 - Book 2 - Deliver 2 - Book 3
I want the user to be able to create a Feedback content and select the relevant book that the feedback belongs to and once saved it should appear under tht particular delivery content.
Can anyone help me? Thank you so much in advance