Consider a restaurant: The KPI to track is not whether customers ate & paid, it’s whether they finished their plates, took some food home, and came back again.
(more wisdom from @AliBHamed)
Don’t spend money acquiring customer before you know how valuable those customers are you.
If you’re customer is worth $100K to you, you can hire a sales team
If they’re worth $2K, you need to do marketing & ad-campaigns
If you prove customer value, you earn the right to go raise a seed round & get more customers
Series A is to scale CAC channels.