(Entity)Reference Field Synchronization allows you to keep 2 Entity reference fields in sync.
Having 2 Entity reference fields pointing back at eachothers entities, they can be set to be updated so that if an entity A with field 1 references to an entity B with field 2, entity B automatically points to entity A.
This is very helpful when you need to be able to reference from any entity, and not just be able to perform back reference queries (as provided by Entity reference).
Patches, comments and suggestions are always welcome.
This project is sponsored by Seed E.M.
New releases (version 2.x and up) will deal only with field-syncing for Entity reference
This module used to be a something similar to Entity reference but was deprecated in favor of it. There is no upgrade path to such module.
There is no support for version 1.x at all.