SendApp is a customer messaging platform built on the official WhatsApp Business API. Teams use it to manage inbound conversations, run outbound campaigns and automate routine replies from a single workspace. The shared inbox lets an entire team work from one business number. Conversations are routed to the right agent or department, with ownership locking so two people never reply to the same customer, plus internal notes, chat transfer and per-agent response-time reporting. Every plan includes unlimited operators. On the outbound side, SendApp handles template submission and approval, segmented contact lists, bulk campaigns with delivery and read tracking, and scheduled reminders and follow-up sequences. An AI assistant can cover first contact around the clock — answering common questions, qualifying leads and taking bookings — and hands off to a human when needed. Native connectors for WooCommerce, Shopify, PrestaShop, Wix and Google Sheets send order and booking notifications automatically. Zapier, Make and a documented REST API cover custom workflows. Facebook Lead Ads and web forms route new leads straight into a conversation. Messaging fees are billed by Meta at published rates with no markup. SendApp is a badged Meta Tech Partner.