What is the purpose of Business Rules in Dynamics 365 CE?

Business Rules enable organizations to enforce business logic without writing custom code. They allow administrators to define conditions and actions that validate data, show or hide fields, set default values, lock fields, display error messages and automate form behavior. Unlike JavaScript, Business Rules can be applied at both the form and table levels, making them reusable across model-driven applications. They improve data consistency, reduce user errors and simplify application maintenance. Organizations often use Business Rules for validating mandatory information, enforcing approval conditions and maintaining standardized business processes across departments.