How to show SUM of values from referenced entity fields in a View? Okay, I've a two content types "A" and "B". "A" is a parent and have a field referenced(Entity Reference) to the child content type "B". Now I've created a View(Table) with a list of "A". And I want to add a field to show the SUM of field values from the referenced type "B". How to do this? Is it possible to solve with a Rules?
Under Relationships, add a relationship for the desired field. "Entity Referenced". Not "Entity Referencing".
Under Fields, add the field you want to sum. Add the relationship in the field settings.
Under advanced, enable Use Aggregation.
Under fields, click Aggregation Settings next to the field and choose "Sum".