Created a entity reference field i CONTENT A and linking it to CONTENT TYPE B. It works fine and takes me to the linked FULL CONTENT. Is it possible to link it to a different view mode like a TEASER or other view mode.
I've used View Mode Page before, and it might do the trick for you. Basically assign a view mode for a content type given a URL pattern. Pretty neat.
a link: /some/somthing/here is just a link. It resolves to a resource on Drupal (see hook_menu).
A node by default lives at the url node/NID which shows the full view mode. You need Views, a Context, a Panel -- and a different url then node/NID to show a different view mode.
So yes ... you can make a different url to show a teaser. How you make the url is up to you.
