Does CPA matter for a Awareness campaign?

Short answer: not really, and here’s why
Nothing is being acquired, Awareness campaigns aren't optimizing toward a sale or a lead, just visibility. There's no acquisition event for this number to describe.
Ask your agency this instead

Want the metrics that actually matter for a Awareness campaign? Open the tool and pick one.

Other metrics for a Awareness campaign
Sources

Adamigo provided the Awareness CTR and CPM figures. No Awareness-specific frequency data was available in research; the reversed frequency logic is a reasoned judgment call based on how brand recall generally works, not a cited benchmark.