ESS Name Change Person workflow - approvals depending on business unit of requestor

Summary

ESS Name Change Person workflow - approvals depending on business unit of requestor

Content

One of our business units would like a notification if an employee changes their name in using Employee Self Service.  We would like when an employee changes their name in ESS for it to go to a specific role depending on the requestor's business unit for only one of our business units.  I am not seeing how to do that.  I think this have to do with the fact that contacts will not have a business unit, only the employees.  However, we want to only check when an employee changes their name in one of our 8 business units, and