Multi-Tenant SaaS eCommerce Store Integration

I'm looking to buy and deploy a multi-tenant SaaS eCommerce store with multi-theme and multi-store capabilities. The application can be found here: https://codecanyon.net/item/ecommercego-saas-ecommerce-store-with-multi-theme-and-multi-store/45984492.

However, the app does not come with installations for Facebook Pixel, Google Analytics, Google Ads Conversion, and Google Merchant for the super admin or admin. I need to develop the first Facebook Pixel app with an API key for both the admin and super admin.

Once this initial work is done to my satisfaction, I will have further tasks involving adding static HTML themes and integrating other applications.

Requirements:
- Integration of tracking tools to monitor user activity and conversions.
- Initial integration of Google Analytics, followed by other platforms.
- Customizable setup for each tenant (store), with separate configurations.

Ideal skills and experience:
- Proficient in eCommerce solutions and SaaS.
- Extensive experience with Facebook Pixel and Google services.
- Previous experience with multi-tenant system setup.
- Strong understanding of user tracking and conversion analysis.
- Ability to develop and implement custom solutions.