EntityReference and custom field but not Title By default EntityReference (auto-complete) works with Title, is it possible to use another field (f.x. from selected Content Type)?

I also tried to create a view and use it (it worked well when you selected value) however once you save a Node and reload, it display Title again.

How could I change that and display my own field?
I believe you are looking for the Entity Reference autofill module.

Please excuse me if I misunderstood your need.