A business’ inventory needs to be uploaded to Facebook in a catalog format —see About Catalogs for more information.
If a business already has a Facebook catalog set up, we suggest that you leverage that catalog for WhatsApp commerce use cases. Just connect the catalog to a WABA and the business will be able to Share Products With Customers.
If a business needs to create a catalog, there are two possibilities:
You can upload only one catalog per WhatsApp Business Account (WABA), but the same catalog can belong to multiple phone numbers.
Business Solution Providers (BSPs) onboarding client businesses into commerce messages have the following options: