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Debug abap abap debugging shorts

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okay, let's dive deep into abap debugging, covering everything from the basics to advanced techniques, shortcuts, and illustrative code examples.

**i. introduction to abap debugging**

debugging is a critical skill for any abap developer. it's the process of identifying, isolating, and correcting errors (bugs) in your abap code. abap provides a powerful debugger that allows you to step through code execution, inspect variables, modify data, and analyze program flow to pinpoint the source of problems.

**why debug?**

* **error identification:** pinpoint the exact location and cause of runtime errors (short dumps) or unexpected behavior.
* **code understanding:** gain a deeper understanding of how existing code works, especially when dealing with complex legacy systems.
* **performance analysis:** identify performance bottlenecks and optimize code for faster execution.
* **data integrity:** verify data manipulations and ensure that data is processed correctly at each step.
* **problem solving:** understand unexpected outputs by tracing the flow of your code and variables.

**ii. accessing the abap debugger**

there are several ways to start the abap debugger:

1. **setting a breakpoint (most common):**

* **in the abap editor (se38, se80, eclipse adt):** place the cursor on a line of code and press `ctrl + shift + b` (or click the breakpoint icon on the toolbar). this creates an *external breakpoint* that will be triggered for all users.
* **user-specific breakpoint:** type `/h` in the transaction code field (e.g., when launching a report). this activates *system debugging* and the debugger will start when the program runs. this only affects *your* user. if you type `/h` twice, it will launch the "new abap debugger". you can use `/hs` to toggle system debugging status.

2. **using the `break-point` statement:**

* insert the statement `break-point.` in your code. this will always stop the program execution when that line is reached ...

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