Knock is a platform that enables leads to message sales representatives on LinkedIn, Slack, or WhatsApp from any marketing asset. By adding the Knock engagement button to marketing materials, leads can instantly connect with sales reps in a private Slack channel without needing a Slack account. Sales teams receive real-time notifications and can accept only relevant chats, with Knock directing qualified leads to the appropriate representative based on company routing rules. Within Slack, teams can conduct discovery by asking questions, sharing files, and adding relevant contacts. If a lead is deemed unsuitable, the channel can be removed from the sidebar. For interested leads, sales reps can share their calendar using the Knock scheduling tool to book demos. Throughout the sales cycle, the chat remains active, with contact information and prospect activities automatically added to the CRM.