WhatsApp is a cross-platform messaging and Voice over IP service owned by Meta (formerly Facebook). The application allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other media. Beyond its personal communication features, WhatsApp offers a business version that enables companies to interact with customers through automated messaging, catalogues, and other business-focused tools. This business application has become increasingly important for small to medium enterprises seeking cost-effective customer engagement solutions.