Field Exits

• Field exits allow you to create your own programming logic for any data element in the Dictionary. You can use this logic to carry out checks, conversions, or business-related processing for any screen field.
• Field exits are branches from a screen field with a data element reference into a function module. Field exits can be selected globally or selectively.

• Types of Field Exits.

1. Global Field Exits.
2. Local Field Exits.

• Global Field Exits :

1. Global Field Exits are not limited to one screen. If you use the data element on multiple screens, you will branch to a function module from all these screens once the exit is activated.
2. Syntax :

                     FIELD_EXIT_< DATA Element name >

• Local Field Exits :

1. Local field exits are valid for one screen only. If you assign the screen of a specific program to the data element, then you will branch to a function module only from this screen after activation.
2. Syntax :

                               Prefix                     : FIELD_EXIT_

                               Name                     : < Data Element Name>_

                              Suffix ( optional )   : 0 to 9 , A to Z