What is one of the key functionalities of field extensibility in SAP S/4HANA?

Field extensibility in SAP S/4HANA allows organizations to customize their applications without altering the underlying code or the database structure. One of the critical functionalities of this feature is that it enables users to change the user interface layout of existing applications.

When users need to enhance the usability and relevance of applications for their specific business processes, they can use field extensibility to adjust how information is presented to them. This can include adding new fields, rearranging existing fields, or changing labels—all through a guided, user-friendly interface. It empowers business users to tailor their applications according to their needs, improving user experience and efficiency.

The other options do not align with the primary purpose of field extensibility. For example, altering the application server or directly modifying database structures typically involves more complex processes and could potentially disrupt system integrity and performance. Creating new application modules, while important, is outside the scope of field extensibility, which focuses more on user interface changes rather than on developing new functional areas within the system.