I need a specialist who can complete a clean, one-off deployment of a WhatsApp Cloud API (WABA) inside my own, fully verified Meta Business Manager. The environment will power a multi-tenant SaaS, so every phone number added later must behave as a standalone WhatsApp Business while still living under the same WABA. My immediate use cases are clear: sending balance confirmations, ledger PDFs, invoice or receipt messages, and even payment-link notifications—each with interactive “Confirm / Dispute” buttons. Once you hand everything over, I should be able to add numbers, build new templates, and manage daily operations on my own without any recurring platform fees or reliance on a BSP. Here’s what I expect to receive at project close: • Verified Meta Business Manager in my company’s name, hosting the WABA you set up • Cloud API configured for multiple numbers, each isolated as its own business line • Webhook pointing to my server (I’ll supply the endpoint) • Tested templates for balance confirmation, ledger PDF, invoice/receipt, and payment links with interactive buttons • Full admin transfer: API credentials, WABA ID, phone_number_id, and step-by-step documentation In your proposal, outline the fixed price, a realistic timeline, and a brief description of how you’ll deliver the items above. Once everything is tested and credentials are in my hands, the engagement is finished—no ongoing fees. Looking forward to working with someone who’s done this exact setup before and can wrap it up smoothly. Quote actuals, later dont ask for more cost , saying you did for sake of bidding.