c payment is booked to the corresponding persons 12 times per year (every month). This way you can al... in the first year, 100 € in the second year and 120 € per month in the third year. The assignment of... first year of contributions, i.e., for months 0-12.
Enter 1-1 on the Entry date for the second year, i.e., the months 13-24.
Enter 2-2 on the Entry date for the thirsyear,