Instead of likes and impressions, you track group engagement, message replies, click-throughs on shared links, and how often members initiate purchases or ask follow-up questions. Referral codes and repeat purchase rates show whether WhatsApp users are higher-quality than influencer traffic. Sentiment inside chats, response speed, and drop-off points also reveal trust and intent strength. Over time, these signals replace vanity metrics and show whether WhatsApp communities are producing loyal, high-value customers instead of passive viewers, but what patterns would you prioritize when deciding if conversational channels outperform influencer campaigns in real, practical business terms.