Retention Policy Cannot Be Applied (code 1537)

Situation

The following warning is reported during the backup plan creation or editing: Retention policy cannot be applied (Code: 1537).

Description: Full backup is not scheduled. A retention policy can only be applied after a full backup or if Forever Forward Incremental is enabled. To avoid this issue, you should schedule a full backup or change your retention policy.

Cause

This warning is reported because the customer has no full backup schedule but has set a retention policy. This will result in data being kept forever, which is not expected.

Solutions

1. Edit the schedule. Set a full backup schedule. Your retention policy will be applied as configured.
2. Edit the schedule. Use the Forever Forward Incremental schedule. This schedule sets one full backup followed by a chain of incremental ones. The full backup is updated using incremental backups for which the retention period has expired.
3. Edit the retention policy. Set 'Do not purge' if you really want to keep backup data forever.