The TestMart announced the launch of Horizon, a new enterprise validation platform built exclusively for Microsoft Dynamics 365. Horizon combines AI-powered, intent-based test creation with deterministic, fully auditable execution, enabling organizations to validate business-critical applications, configurations, customizations, integrations and AI-powered processes. The platform enables business and technical teams to create comprehensive validation tests in minutes without scripting, while ensuring every production execution remains repeatable, explainable and fully auditable. At the core of Horizon is a structural distinction: AI and environment intelligence accelerate test creation, and clarify coverage while execution remains fully deterministic. Features include five-layer self-healing technology to keep tests resilient through Microsoft release updates, Headless Validation for testing Dynamics 365 APIs, OData services, business logic and data, and the Horizon Test Data Management (TDM) Engine for automated setup, validation, and cleanup of Dynamics 365 and Dataverse test data. Version Intelligence refreshes with every Microsoft release wave, and AI agent validation enables organizations to test Microsoft Copilot and other inputs, outputs, decisions and business logic.