Number of Months and/or Days After or Before the Renewal Date
We would like that number of days after or before the renewal date take care not only days but months. I mean, we allways create invoices on 21st, monthy. Some months have not exactly, ea. 30 days. If we setup "number of days before the renewal date" to 30, we can get two invoices, one on 21st, other on 22nd., depending on current month number of days. We would like to have only one invoice at 21st with every items inside.