ABAP Keyword Documentation → ABAP - Dictionary → Classic Objects in ABAP Dictionary → Enhancements → Append Structures
Dictionary DDL for Structure Enhancements
In the ABAP Development Tools (ADT), a structure or database table can be given a source-code-based enhancement known as an append structure in Dictionary DDL. Here, however, the source code of an append structure is not saved and transported. Instead, the source code of an existing append structure is generated from the metadata of the associated system tables. When saved, the metadata is derived directly from the append structure and saved to the system tables.
Other versions:
7.31 | 7.40 | 7.54
Note
Each property of an append structure can be defined using either EXTEND TYPE or in the transaction SE11.