How To Fix W0CSRS026 - Set one key in the selection box as a default

SAP Error Message - Details

• Message type: E = Error

• Message class: W0CSRS - Customizing - SAP Retail Store

• Message number: 026

• Message text: Set one key in the selection box as a default

What causes this issue?

You tried to select more than one entry in the column "Select Box" in
the maintenance dialog box "General Business Transactions for Other
Goods Movements" in the column "Prepopulate".

System Response

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

How to fix this error?

Only select one entry in the column "Prepopulate" for the column "Select
Box".

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W0CSRS026 - Set one key in the selection box as a default ?

  SAP Error Message:
  
  W0CSRS026 – Set one key in the selection box as a default
  
  Cause:
  This warning message appears when a selection screen or a selection box (such as a dropdown or radio button group) in a custom or standard SAP report or transaction does not have a default value set. SAP requires that at least one key (option) in the selection box be pre-selected as the default to avoid ambiguity and ensure the user interface behaves predictably.
  
  Explanation:
  
  In selection screens, especially those with multiple options (like radio buttons or dropdown lists), SAP expects one option to be pre-selected.
  If no default is set, the system raises this warning to prompt the developer or configurator to specify a default value.
  This helps users by providing a starting point and prevents errors or confusion during execution.
  
  
  Solution:
  
  
  Set a Default Value in the Selection Box:
  
  In the ABAP code or screen configuration, assign a default value to the parameter or select-option representing the selection box.
  For example, if you have a radio button group or a dropdown list, set the initial value of the parameter to one of the valid keys.
  
  
  
  How to Set Default in ABAP:
  
  If using PARAMETERS or SELECT-OPTIONS, assign a default value in the declaration:
  PARAMETERS: p_option TYPE c RADIOBUTTON GROUP grp DEFAULT 'X'.
  
  For dropdowns or value helps, set the initial value of the parameter before the selection screen is displayed:
  p_option = 'DEFAULT_KEY'.
  
  Alternatively, use the INITIALIZATION event to set default values:
  INITIALIZATION.
    p_option = 'DEFAULT_KEY'.
  
  
  
  
  In Screen Painter or GUI Status:
  
  If the selection box is created via screen painter or dynpro, ensure the default value is set in the screen attributes or flow logic.
  
  
  
  
  Related Information:
  
  Message Class: W0C (Customizing or specific module related)
  Message Number: 026
  This message is a warning, not an error, so it does not stop processing but should be addressed for better usability.
  Setting default values improves user experience and reduces input errors.
  If you are customizing standard SAP reports or transactions, check if the selection screen parameters are properly initialized.
  For custom developments, always initialize selection screen parameters to valid defaults.
  
  
  Summary:
  
  Cause: No default key set in a selection box on a selection screen.
  Solution: Assign a default value to one of the keys/options in the selection box.
  Result: The warning disappears, and the selection screen behaves predictably with a pre-selected option.
  
  
  If you need help with the exact code snippet or configuration steps, please provide the context or code of the selection screen.