I am trying to create a rule to email some data on the content changed event. I am unable to retrieve any data from the non-localized fields using $CONTENT_DATA.
E.g. $CONTENT_DATA.Product or $CONTENT_DATA.Product.en or $CONTENT_DATA.Product.default all return null. Only when I create a field as a localized I can get the data using $CONTENT_DATA.Product.en