107.ABAP TIP - Field Exit

Chapter 107

ABAP TIP - Field Exit

Source : http://abapjoy.blogspot.com

Field Exit enables individual column of standard program to add extra logic.

For example, You can customize the some column in T-CODE:MK02(VENDOR MASTER).

Especially, it’s very useful you need to enable only the corresponding table when occurring error.

But, simply if you want to restrict the values in column, you can use the feather of domain ‘fixed value append’.

Let’s find out the data element name in the technical information of the column we want to customize.

Perform T-CODE:SE38 and enter 'RSMODPRF'.

Enter the data element name you already checked before.

Note that if it is first time to create field exit for the column, you should not enter the number of field exit.

Now we can program for the field exit and activate.

Re-execute program leaving all columns blank.

Choose the line and push the menu : field exit -> assign prog/screen.

Enter the program name and screen name that we want to customize. You can figure out in menu : SYSTEM -> STATUS.

And, activate the field exit.

Now, once you input the unavailable value in column, you can see the error message like below.