@AchinthaJ 

In Pega, an Entity is the main business data used in your application, like a customer or an insurance policy, which you usually create, update, and store in the database. A Data Object is supporting or reference data, like a list of countries or insurance products, which is mostly used for selection or display purposes and usually comes from data pages or external systems. Entities are often tied to case types and form the core of your business process, while data objects are used to help complete the process by providing additional information. For example, when creating a new policy (entity), you may pick a product from the product catalog (data object). So, data objects help fill in values in entities. Entities are more dynamic and store changes, but data objects are usually read-only. Both are important and often work together in an application.

Hi @AchinthaJ

Entity is the main object you're working with, like an Order in an online shopping system. It has its own ID and can be saved or processed.

Data object is a smaller part of that entity — like Customer Info, Shipping Address, or Payment Details. These data objects help describe the entity but don’t usually stand alone.

For example, an Order (entity) is made up of many data objects that give it full meaning, just like a burger (entity) is made complete by its bun, patty, and toppings (data objects).