SAP NetWeaver AS ABAP Release 740, ©Copyright 2014 SAP AG. All rights reserved.
No Common Data Areas
In ABAP Objects, the following syntax causes an error message:
DATA BEGIN OF COMMON PART c,
...
DATA END OF COMMON PART.
Reason:
Common interface work areas for data transfer between programs and
procedures are not supported
in ABAP Objects. In classes only the components visible to a user are used as interfaces, that is, visible attributes and the interface parameters of methods and events.