I’m building a hold-and-release (escrow) payment flow that takes place entirely inside a WhatsApp chat while keeping every step mirrored on a companion website. The chat experience must let two participants create a payment request, see real-time status updates, and automatically trigger the fund-hold and final release messages—all through the WhatsApp Business API. Users never leave the conversation, yet every action they take is logged to their personal account area on the site, where they can later review history, manage live transactions, and view standard account details. Behind the scenes I also need a browser-based admin console that shows every transaction end-to-end, lets me step in to handle disputes, manually freeze or release funds, and export audit logs so the overall workflow stays compliant. When you reply, please outline • the specific WhatsApp API route you recommend and how it will cover payment creation, status updates, holding, and releasing funds • the architecture you’d use to sync chat events with the user dashboards and the admin panel • any security and compliance measures you’ll implement for the escrow logic • a milestone-level timeline and your pricing approach for the full implementation