What is necessary when defining an interface in ABAP?

When defining an interface in ABAP, having a unique name is essential because it ensures that the interface can be reliably referenced and utilized within the ABAP program without any conflicts. In the context of ABAP development, namespaces and unique identifiers help prevent ambiguities in code, particularly in large systems where multiple developers may create similar components.

The requirement for a unique name allows for maintainability and clarity in the codebase, ensuring that developers can confidently implement and consume the interface throughout their applications. This uniqueness also extends to compatibility with the naming conventions and practices in SAP environments.

While interfaces cannot contain attributes, can have public methods, and do not require at least one abstract method, the necessity for a unique name stands out as a fundamental aspect of defining interfaces in ABAP. Having this ensures that each interface can be distinctly identified, promoting better software design principles and reducing potential issues in coding and execution.