Work with elements
When working with extensions, you can customize the application in three different ways:
Create new model elements – By creating new model elements, you would be creating new objects that do not exist, such as a form, enumeration, or class.
Augment model elements – By augmenting model elements, you are extending objects that exist. For example, if you need to add a field to an existing form, you would augment (extend) the form and add your field.
Augment source code – When you augment (extend) source code, you are extending logic and modifying it for your business by using concepts like method wrapping or delegates.
For more information, see Extend elements in finance and operations apps..