WhatsApp API Setup & Guidance

I am building a small web-based tool for my startup and want to plug in the official WhatsApp Cloud API directly—no third-party gateways or SaaS bridges. My immediate roadblock is Facebook’s Business Manager: my display name keeps getting rejected and I am not entirely certain I have configured the app, phone number, or verification steps in the right order. What I need from you • Walk me through the correct Business Manager and Cloud API setup so the display name is finally approved. • Show me how to generate the permanent access token, connect my web application, and successfully send outbound messages only (no need to handle inbound traffic right now). Messages will include plain text plus the ability for customers to choose "yes" or "no" options, like a poll. • Explain rate limits, template approval, and best practices so I can maintain the integration myself after you leave. Preferred stack I am not a developer and am using vibe coding to build this. The key is that everything runs from my own server. Acceptance criteria 1. Display name approved and phone number set to “Connected”. 2. A minimal web script that sends both a text and an image message to a test number. 3. Clear, step-by-step documentation of the process so I can replicate it in production. If you have navigated this approval maze before and can explain it in plain language while screensharing or recording a short Loom, you’re the perfect fit.

Project ID: 40435625