The expected results are not obtained when using Months and Payment Day in the payment terms.

Originally, if the date specified in Payment day is exceeded, the minimum payment day of the next month will be calculated as the due date.

However, if you specify 1 or more for Months, the minimum date of the current month becomes the due date.

If Months is 0, it will be the next month after the Payment day.

Please fix it so that it is calculated correctly even when Months is 1 or more.