Currently Sleekflow is able to integrate Whatsapp catalog and display it in Whatsapp profile so that end customers can see it. However, we are unable to share catalog products directly within customer conversations from inbox. Enabling user to share/send WhatsApp Catalog, would allow them to recommend products more efficiently and provide a smoother customer experience.

Meta natively supports Catalog Messages, Single Product Messages, and Multi-Product Messages for WhatsApp Business.

You may refer here https://developers.facebook.com/documentation/business-messaging/whatsapp/catalogs/share-products