We want to see a list of people who have birthday next month. Advanced search doesn't suit us because it is trying to do search only for a current year. We use SYSTOPIA Birthdays for generating upcoming birthday report (this month). Then we configured scheduled job to send this monthly mail report. But somehow date when report sent is moving forward: one month it was sent at the first day of month, the other month at the second day etc. We need to send this report at the very first day of the month. If it sends a mail report at for example seventh day then we don't see people whose birthday was in the first days of the month. Is there any way to solve this problem?
CiviCRM version - 5.10.2