minRetentionDays

This setting specifies the minimum retention period that the vault retains its recovery points. If this parameter is not specified, no minimum retention period is enforced.

If specified, any backup or copy job to the vault must have a lifecycle policy with a retention period equal to or longer than the minimum retention period. If a job retention period is shorter than that minimum retention period, then the vault fails the backup or copy job, and you should either modify your lifecycle settings or use a different vault.