We are an online education academy looking for an experienced developer to set up a WhatsApp Business API–based support system that allows multiple support agents to work simultaneously using one WhatsApp number. The system should be web-based and enable our support team to manage and reply to student and parent inquiries professionally from a single official WhatsApp Business number. Key Requirements: Official WhatsApp Business API (Meta) integration One WhatsApp number used by multiple support agents Each agent has their own secure login Web-based dashboard (no mobile app required) Ability to assign, transfer, and manage conversations Admin role with full access and agent management Conversation history stored in a database Basic automation (welcome message / out-of-hours reply) Deployed on a server (AWS, DigitalOcean, or similar) Technical Preference: Preferred: Chatwoot (Open Source) + WhatsApp Business API Or a custom solution using Node.js / PHP, with a proper database and authentication system Deliverables: Fully working and deployed system Admin and agent accounts Basic documentation or walkthrough Support during WhatsApp API setup if needed Please include in your proposal: Your experience with WhatsApp Business API Whether you recommend Chatwoot or a custom build (and why) Estimated timeline and total cost