Address DFF, Address Profile Options and Geographical Hierarchy and validation

Can anyone advise on the relationship/hierarchy between The Receivables Address DFF, Address Profile Options i.e. Flexible Address Formats, Default Address Style and Geographical Hierarchy and validation?  For example, if I have address styles set up in the Address DFF and use a territory which doesn't have one assigned, what path does Oracle take?  Is there a flow chart that shows the different combinations and paths Oracle takes? Is there defaulting logic/hierarchies?

All I can find in Oracle Support is independent to each area, no information on how these interact/default or hierarchies in place.

Thanks