In my opinion, the partial ledger settlement is there to support the "subledger to ledger auto settlement" that can be enabled in the GL parameters - this will automatically partially settle ledger transactions based on the Customer/Vendor settlements, though not by using Process Automation for Ledger Settlement. That said, what is the business requirement you have that requires automatic partial ledge settlement? I would like to understand this, as I am concerned that having Process Automation for Ledger Settlement perform partial settlements end up being the Ledger equivalent to the automatic settlement that can be enabled in the AR/AP parameter - where it is always settled against the oldest balance. In that case, I am not sure I see the purpose of performing ledger settlement, but I may be missing aspects of this, so I encourage you to share the specific business requirement related to this. Thanks!