Rakhi Yadav

You create a screen exit in SAP ABAP by using the "Screen Exit" functionality. This allows you to add your own custom code to a standard SAP screen.

Here's a simplified overview of the process:

1. Identify the screen: You need to determine the screen number and program where you want to add the exit. 

2. Create a function module: You'll create a function module with the name following the standard SAP naming convention for screen exits (e.g., "EXIT_SAPLMEGU_001").

3. Add the exit code: Inside the function module, you'll write the ABAP code that you want to execute when the screen is displayed.

4. Activate the exit: After creating the function module, you need to activate it and then link it to the specific screen using the "Screen Exit" functionality in the ABAP workbench.

Keep in mind that screen exits can be complex, and the exact steps may vary depending on the specific screen and program you're working with.

ITAB is short for "Internal Table" in SAP ABAP. It's like a spreadsheet within your ABAP program where you can store and manipulate data. You can think of it as a temporary storage area for your data. 

You can use ITABs to:

* Store data from database tables.

* Process and manipulate data.

* Pass data between different parts of your program.

They are a fundamental part of ABAP programming and used in many different scenarios.

It depends on your interests and skills. SAP ABAP is more technical, focusing on programming and development. SAP functional is more business-oriented, focusing on understanding and configuring specific SAP modules like SD, MM, or FI.

If you enjoy coding and problem-solving, ABAP might be a good fit. If you're interested in business processes and how SAP works within an organization, functional might be better.

An object in SAP ABAP is like a blueprint for creating data and functionality. It's a combination of data (attributes) and methods (actions) that work together. Imagine a car object - it has attributes like color, make, and model, and methods like start engine, accelerate, and brake.  

Objects in ABAP help you organize your code, make it reusable, and create modular application

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