Debugger 

The Debugger is a programming tool that you can use to execute ABAP programs, by line or by section. With this tool, you can display data objects and check the flow logic of programs.

Two types of debugging are currently possible: Debugging with the classic Debugger for release levels up to and including 6.40 or debugging with the new Debugger, which is available for all releases after 6.40. The main differences between the classic and the new ABAP Debuggers are described below:

·         The Classic ABAP Debugger runs in the same roll area as the application to be analyzed (debuggee). It is therefore displayed in the same window as the application. However, this technology also has some restrictions. For example, some ABAP programs (such as conversion exist) cannot be analyzed in debug mode for technical reasons. However, the most significant restriction is that no ABAP technology can be used for designing the Debugger interface and it is therefore not possible to create a modern user interface.

• The New ABAP Debugger, on the other hand, is executed in a separate external session (Debugger), while the application to be analyzed (debuggee) uses a second external session. With this technology, the user interface of the Debugger can be designed freely by ABAP means.

The new Debugger provides the user with a flexible interface that can be configured as required and has more than eight desktops. Here it is possible to place and arrange up to four tools - depending on the user's selection. For example, it is possible to display source texts or structures. In this way, the user can design the Debugger interface according to his own individual requirements.

As of Release 6.40, you can select the debugging type as you wish by choosing the classic Debugger or the new Debugger in the ABAP Editor from the path Utilities  ® Settings. It is also possible to switch the Debugger at any time during a session under the menu option Debugging.

As of Release 7.00, the new ABAP Debugger is the default.