Hi Vishal,
First reverse settlements you have made on wrong AUC and then create new settlement rule for new correct AUC and settle.
If you have settled a sender more than once within a period, you must also reverse the settlements one by one. First, you reverse the last settlement for the period, then the second-to- last, and so on.
if, within a given period, you want to reverse a settlement from a previous period, you need to reverse the subsequent settlements first. For example, you are in period 6 and you want to reverse the settlement for period 4. You first have to reverse any settlements for periods 6 and 5.
Note: The settlement document is required for reversing settlements
thanks
Dnyaneshwar