Retroactive billing always covers an already elapsed period (e.g., on October 1st for the previous month of September). To configure a contract that generates an invoice for the elapsed period within the same month (e.g., on September 10th for the month of September), you need to set the retroactive billing offset to -10 days.
Invoice Dated Within the Period It Covers
How to set up a subscription contract so that the invoice is issued on a date within the period it should cover?
Written by Lenka Haringerová