Description
a multi-tenant SaaS POS & business-automation platform (.NET 8 / ASP.NET Core backend, React frontend, MySQL). We have built a WhatsApp Business Platform integration using Meta Embedded Signup ("Continue with Meta" Facebook login flow), modeled on the Tech Provider / ISV pattern — our merchants connect their own WhatsApp Business numbers to our platform in one click. The code is complete and tested. We need a specialist to take the integration from "code-complete" to "live and approved by Meta." What's Already Done (you don't build this) Backend service: OAuth code exchange, WABA subscribe/unsubscribe, phone-number info, 4-checkpoint connection health check (OAuth / Subscribe / Payment / Template) — with full xUnit test coverage API endpoints for embedded-signup config, token exchange, subscription management React UI: "Continue with Meta" button (FB JS SDK popup + postMessage handling), WhatsApp workspace dialog with connection management, reconnect flow Meta App created with WhatsApp use case, Business verification done, App Review submission drafted (all 4 permission descriptions + agreements completed; API test calls completed for business_management and whatsapp_business_management; messaging test call pending processing) What You Will Do Complete Meta App Review for whatsapp_business_messaging, whatsapp_business_management, business_management: Produce the 3 required screencast recordings demonstrating the end-to-end permission usage in our product Verify all API test c