resources

The Amazon Resource Names (ARNs) of the resources to assign to a backup plan. The maximum number of ARNs is 500 without wildcards, or 30 ARNs with wildcards.

If you need to assign many resources to a backup plan, consider a different resource selection strategy, such as assigning all resources of a resource type or refining your resource selection using tags.

If you specify multiple ARNs, the resources much match any of the ARNs (OR logic).