You can manually create an ad-hoc full backup for the backup copy job — active full backup copy, and add it to the backup chain on the target backup repository. To do this, you can use the Active Full button on the ribbon or the Active Full command from the shortcut menu.
Active full backup copy can be helpful if you want to change backup copy job settings, for example, define a new encryption password. Veeam Backup & Replication will apply new settings starting from this full backup.
Veeam Backup & Replication treats archive full backups created with the active full backup method as regular backups and applies regular retention policy rules to maintain the necessary number of restore points.
Retention Policy for Active Full Backups
If you create active full backups for backup copy jobs, Veeam Backup & Replication applies to the backup chain retention rules of the forward incremental backup method. Veeam Backup & Replication waits until the number of restore points in the new backup chain is equal to the retention policy setting, and then removes the previous backup chain on the whole. For more information, see Retention for Forward Incremental Backup.
If you additionally use the GFS retention scheme for the backup copy job, Veeam Backup & Replication behaves in a different way. After the number of restore points in the new backup chain is equal to the retention policy setting, Veeam Backup & Replication merges restore points in the previous backup chain to the restore point that must be marked as an archive backup. When the archive restore point is set aside, Veeam Backup & Replication uses the standard scheme described above.