What is ALV and BADI

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Accepted Answer

ALV is a tool to display data in tabular form. BADI is a technique to enhance standard SAP functionality.

ALV stands for ABAP List Viewer and is used to display data in a tabular form with various features like sorting, filtering, etc.
BADI stands for Business Add-In and is a technique to enhance standard SAP functionality without modifying the original code.
ALV can be used to display data from database tables, internal tables, or function modules.
BADI can be implemented by creating an implementation class and implementing the required methods.
ALV can be customized using various function modules like REUSE_ALV_GRID_DISPLAY, REUSE_ALV_LIST_DISPLAY, etc.
BADI can be used to add custom fields, validations, or business logic to standard SAP transactions.
Example of ALV is displaying a list of sales orders with the ability to sort by date or customer name.
Example of BADI is adding a custom field to the standard SAP transaction VA01 to capture additional customer information.

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