I have a master account in Google Analytics 4 (GA4) with several properties, each associated to a specific website.

Each GA4 property needs to be connected to its respective Meta advertising account.

For example: the GA4 property - ITALY must be connected to the META advertising account - ITALY, and so on.

Currently, the integration via the link https://business.facebook.com/events_manager2/partner_gallery_v2?business_id=254268006330197 allows us to connect the MASTER GA4 account to the MASTER META account; however, but we are unable to individually link GA4 properties to their respective Meta advertising accounts.

How can I configure this integration to properly manage each GA4 property with its corresponding Meta advertising account?