I want to connect our existing company cellphone number to the official WhatsApp Business API through the Meta for Developers platform. The goal is to run everything from a single, verified number so that customers experience one seamless channel. Scope of use The API will cover customer support, marketing promotions, and order / delivery updates. On the marketing side I will send promotional offers and product updates, while support needs include auto-replies for common questions, smooth escalation to a live agent, and automatic ticket generation inside our help-desk. What I need from you • Get the number approved and live inside Meta Business Manager, including any Facebook Business verification steps. • Set up the Cloud API (or on-premise if you prefer and it makes sense) with secure webhooks. • Register a handful of message templates and show at least one in each category working in a sandbox. • Build the basic automation flow: a rules-based auto-reply for FAQs, ticket creation hook, and an endpoint that lets a human agent pick up the thread. • Provide clean, well-commented sample code or Postman collections so my internal devs can extend it. Acceptance criteria 1. Our phone number can send and receive messages through the API without rate or template issues. 2. Approved templates are visible in the Business Manager and callable via REST. 3. A demo conversation proves auto-reply, ticket creation, and escalation all fire correctly. 4. Short hand-over session plus concise documentation. Access to the Facebook Business account, phone number, and any third-party help-desk API keys will be supplied as soon as we agree on the approach.