How To Fix AO724 - Selection list box number &1 already has a standard value

SAP Error Message - Details

• Message type: E = Error

• Message class: AO - Appropriation requests - Master data / Customizing

• Message number: 724

• Message text: Selection list box number &1 already has a standard value

What causes this issue?

You want to maintain a selection criteria as a standard value (default)
for selection list box number &v1& of the selection criteria.
However, you already selected a criterion as a standard value for this
list box.

System Response

Maintaining the standard value is not possible.

How to fix this error?

If you want to maintain a new standard value, first delete the old
standard value.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AO724 - Selection list box number &1 already has a standard value ?

  The SAP error message AO724, which states "Selection list box number &1 already has a standard value," typically occurs in the context of using selection screens in ABAP programs. This error indicates that there is an attempt to assign a standard value to a selection list box (also known as a selection option) that has already been assigned a standard value.
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate Assignment: The same selection list box is being assigned a standard value multiple times in the program.
  Incorrect Logic: The logic in the program may be attempting to set a standard value for a selection box that has already been initialized.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Code: Review the ABAP code where the selection screen is defined. Look for any instances where the same selection list box is being assigned a standard value more than once.
  
  
  Remove Duplicate Assignments: If you find duplicate assignments, remove or comment out the redundant lines of code that set the standard value for the selection list box.
  
  
  Use Conditional Logic: If you need to set a standard value based on certain conditions, use conditional statements (e.g., IF statements) to ensure that the standard value is only set once.
  
  
  Debugging: If the issue is not immediately apparent, consider using the debugger to step through the code and see where the standard value is being set.
  
  
  Check for Includes: If your program includes other programs or function modules, ensure that they are not also setting a standard value for the same selection list box.
  
  
  Related Information:
  
  Selection Screens: In SAP ABAP, selection screens are used to gather input from users before executing a report or transaction. Each selection option can have a standard value that is pre-filled when the screen is displayed.
  ABAP Documentation: Refer to the official SAP documentation for more details on selection screens and how to manage standard values.
  SAP Community: You can also check the SAP Community forums for similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to resolve the AO724 error and ensure that your selection screen functions as intended.