eCommerce order management system (web application) for amazon , opencart and woocommerce Accepted Details

Looking to develop an order management system or fulfillment application to assist ecommerce store to fulfill customer orders with different suppliers. The application will consist of channels (ecommerce stores) and suppliers.(need to intrigate amazon,opencart and woocomemrce api ) for shipping need to intrigate 2 method 1st manual and 2nd using shiprocket api with shipping formula The application needs to be completely serverless utilising Google Firebase. Frameworks that can be used will be ReactJS, VueJS, NodeJS.(secure ) The base application- 1. Account Management (Signup, Login, Dashboard, Profile, Password reset ) 2. Setting Firestore Database 3. seller profile managemnt 4. shipping setting 5. Orders, tracking, product and admin pages 6. shipping label setting Features- 1. Receive and submit orders 2. Update order status 3. Import and Update products. 4. Product mapping, product bundling, pricing rules, shipping methods, tags 5. Product delivery tracking 6. lable generation (multi size option) 7. orders export in excel This is not an e-commerce website, its something like bigcommerce and shiprocket with limited features.