Treat ecommerce marketing as one connected system: track CAC and repeat...

https://rapid-wiki.win/index.php/How_Do_I_Restructure_Paid_Account_Architecture_Without_Tanking_Performance%3F

Treat ecommerce marketing as one connected system: track CAC and repeat purchase rate alongside each campaign, then use those numbers to guide your next move. The article also explains how WhatsApp and Slack connections can keep customer data in sync.