A sap dynpro is nothing but a SAP screen that provides a forum for the user to interact with the SAP database. The dynpro forms the heart of any transaction, and in order to design one for a particular process, the process needs to be broken down into a sequence of dynpros.
The main components of a typical SAP custom transaction dynpro are
Screen Attributes
These describe the screen in detail. Common screen attributes are
Screen Attributes
Purpose
Program
Module pool program name associated with the screen
Screen number
4 digit unique number within a module pool program
Short Description
Purpose of the screen � one liner
Original Language
Maintenance language of the screen derived automatically from module pool maintenance language
Package
SAP release version that the screen belongs to
Last changed or Last generated
Date/time when screen was last changed/generated
Screen Type
Hold Data
Setting which remembers the data entered on the screen and displays it again automatically if the user calls it again
Switch off Run time Compression
Option that prevents the screen from getting compressed at run time. Advisable not to use this option
Hold Scroll Position
Option to specify whether the vertical/horizontal scroll position should be remembered. Generally used for large screens
Other Attributes
Next Screen
Number of the next screen to be displayed. Can be changed dynamically through code
Cursor Position
Screen element that the cursor is placed on when the screen is displayed
Screen Group
4 character identifier for a group of related screens
Lines/Columns used
Size of the screen area currently used
Lines/Columns Maintained
Size of the screen starting from upper left corner. Maximum size is 200 rows X 255 columns
