I used to run all client comms through regular WhatsApp too — total nightmare once you have more than two deals going. What helped me was using a CRM that connects directly to WhatsApp, so all chats, deals, and notes stay in one place. I read about it here https://nethunt.com/blog/whatsapp-crm/ and tried setting up something similar. It really helps when messages don’t get buried in random group chats.