This technical note explores the integration of 4D, a powerful application development environment, with Notion, a modern workspace platform, using the Notion API. The guide demonstrates how to perform CRUD (Create, Read, Update, Delete) operations in Notion databases and pages programmatically from within a 4D application. By leveraging 4D’s HTTP request capabilities and parsing tools, developers can seamlessly push structured business data—such as inventory —into Notion for tracking, collaboration, or analytics purposes. A sample business application will showcase real-world use, highlighting how completed transactions in 4D can automatically generate structured entries in Notion, transforming how teams visualize and manage operational data.