Due date XXX is not in settlement period XXX-XXX sap leasing

Hello,

I am trying to do early termination change process. I am getting "due date XXX is not in settlement period XXX - XXX in LAE.

I think this is because of the nominal interest due date. May I know how to solve this? I tried to change the due date rules in payment structure of the financing product. But still the same. Currently I am using new bustype2000301. Hopes to get an advise on this as I am new to leasing. Thanks!