Development of an Authorization App for Managing Accounts in Meta Business

? Project Description:
I run a digital marketing platform for supermarkets that manages clients' Facebook and Instagram pages, similar to MLABS. Currently, the process of linking client accounts to my Meta Business is manual and complex, requiring remote access and several cumbersome steps.

I need a developer experienced in Meta Business API to create a streamlined authorization system. The goal is for the client to receive a personalized link, log into their accounts, and authorize my platform to manage their page, Instagram, and WhatsApp—without requiring remote access.

? Project Requirements:

Develop a simple and intuitive authentication flow for the client.
Enable authorization for:
✅ Managing Facebook Pages and Instagram accounts.
✅ Creating and publishing posts and ghost posts.
✅ Accessing messages and integrating with WhatsApp.
✅ Creating and managing paid campaigns using my ad account.
Build a secure system following Meta Business guidelines.
Seamless integration with my digital marketing platform.
? Deadline: To be discussed.
? Budget: Open to proposals.
? Requirements:

Proven experience with Meta Business API.
Knowledge of OAuth and Facebook/Instagram permissions.
Experience developing authentication systems and integrations.
If you have worked on similar projects or have expertise in Meta Business API, please get in touch with examples of previous work.