As you know, the last day of every month is different, it may be 28, 29, 30 or 31.
So how to schedule the sending at last day of every month in our email schedulers? Set it as 28, 29, 30 or 31? No, no, not this.
In fact, you do not need to care about the last day is what date, you only need to remember that you want send emails at the last day of each month.
To set this schedule, just choose the last item (‘Last Day’) under the first ‘Monthly’ list on the Sending Schedule interface (for AMSSE); to set the last day of month in AMSFE, just set the Schedule field in your email file by referring Interface Definitions documentation.