How to set the backup retention period to less than a week for weekly created backups?

Question

There is a weekly backup task active in Tools & Settings > Backup Manager > Schedule. How to set the Keep backup files option to less than a week? 

Answer

If the backup is executed daily, then the retention period will be switched to days, if it's weekly - to weeks, and so on. Also, this option only accepts integer numbers (so the value like "0.5 weeks" would not work).

1. Log in to Plesk
2. Go to Tools & Settings > Backup Manager > Schedule
3. Select "Daily" value in "Run this backup task" and the number of backups to store: