I have three content types: application, organization, and organization_note. Application has an entity reference to organization and organization has an entity reference to organization note.
The application edit page has an autocomplete field for organization. When a user selects an organization which has a note, I would like the display to be different somehow, ideally a reminder to check the organization's notes.
This question is very similar to this one (unanswered).
I'm at a loss here, and I don't really even know if this is possible. How would I go about doing this? (This is Drupal 7, by the way.)