minRetentionDays

The Backup Vault Lock configuration that specifies the minimum retention period that the vault retains its recovery points. This setting can be useful if, for example, your organization's policies require you to retain certain data for at least seven years (2555 days).

This parameter is required when a vault lock is created through CloudFormation; otherwise, this parameter is optional. If this parameter is not specified, Vault Lock will not enforce a minimum retention period.

If this parameter is 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 the job's retention period is shorter than that minimum retention period, then the vault fails that backup or copy job, and you should either modify your lifecycle settings or use a different vault. The shortest minimum retention period you can specify is 1 day. Recovery points already saved in the vault prior to Vault Lock are not affected.