Hello again,
in order to change the due date, which is generated by the interest condition, the condition has either to be changed (-> reverse postings to make it editable) or a new condition (e.g. with eff. from date = begin of last interest period) has to be set up.
Which of these possibilities is more feasible depends on the position, actually, which I do not have further info on - but without a changed or new condition, the cash flow will be calculated up to the
new final repayment date, where the last interest flow will have the final repayment as calculation date, but payment date will remain as per condtion per default.
Best regards,
Marie