Assigning collectors to customers on basis of locations

Summary:

Hi all,

Currently, Oracle seeded functionality for the Collections module only allows collector assignment at the Business Unit (BU) level. There does not appear to be an option to assign collectors by brand or by location within a BU.

Is there a way, either through configuration or extension, to assign collectors by brand and location (domestic/international) within Oracle Collections for multiple customers at once

domestic mean USA and international means apart from USA all countries.

Could you please advise on the steps or best practices for assigning collectors based on country code in Oracle Receivables?
Additionally, is there a way to perform this task by uploading and updating customers in bulk using FBDI or a similar process? Guidance on how to do a massive update using FBDI would be especially helpful.