Here is the scenario
I have a Company > Department > Employee… in that hierarchy.
Companies are already created previously.
On the Department node add form, there is an entity reference field to reference a Company. On that same Department node form, there is another Entity Reference field that leverages Inline Entity Form to add + reference Employee nodes on the fly. These Employee nodes also have a Company entity reference field.
The goal is to pass the Company field value from the Department node to the referenced Employee nodes when the Department form is saved.
I figure this may be accomplished with the Business rules module, and/or a hook form alter. Tried both without any traction. Any tips?