If a schedule encounters a month without the available day, it moves the charge date to the last available day in that month which sets the schedule moving forward.
Here are a few examples of how this might look:
- Purchased on August 31st, schedule set to renew next on September 30th
- Purchased on October 29th, subsequent charges on the 29th until February, where it moves to the 28th
- Purchased on May 31st, subsequent charges on the 30th
- Purchased on August 31st, next charge on September 30th
- Purchased on May 30th, subsequent charges for the 30th of the following month. If subscription continues until February 2018, schedule will shift to the 28th of the month.
The biggest impact is usually the month of February moving previous end-of-month customers to the 28th, rather than seeing higher processing on the 30th you will see it coalesce around the 28th instead. Note that this only applies to subscriptions set to the Month frequency type - subscriptions using days or weeks will not be impacted.
Some of these schedules may be pushed for other reasons. For example, a customer that had a previously declined charge on September 30th, may not have their card charged again until October 3rd. If it succeeds, they should be on a Oct 3rd, Nov. 3rd, Dec. 3rd, etc. schedule pending a future decline.