How To Fix WXP157 - Select at least one line in the list

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 157

• Message text: Select at least one line in the list

What causes this issue?

You have chosen a function that requires at least one argument but can
support more than one argument. This can be specified by choosing lines
in the relevant list.
When the function was called, no element in the list was selected and
as a result, no function arguments could be chosen.
If the list only contains one line, it is used for specifying the
argument for the function in question.

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?

Select at least one element in the list and call the function once
again.

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 WXP157 - Select at least one line in the list ?

  Certainly! Here's detailed information about the SAP error message WXP157 - "Select at least one line in the list":
  
  Error Message
  WXP157: Select at least one line in the list
  
  Cause
  This error occurs when a user tries to perform an action (such as processing, deleting, or executing a function) on a list or table in an SAP transaction without selecting any line/item from that list. The system expects the user to select at least one entry to proceed, but none was selected.
  Common scenarios include:
  
  Executing a function module or report that requires user selection.
  Trying to process or change entries in a list without marking any line.
  Using standard SAP transactions or custom programs with ALV (ABAP List Viewer) grids or selection lists where line selection is mandatory.
  
  
  Solution
  To resolve this error, the user should:
  
  
  Select at least one line in the displayed list or table before executing the action.
  
  Usually, this means clicking the checkbox or highlighting the row(s) that you want to process.
  
  
  
  Check the selection criteria if the list is empty or no selectable lines are shown.
  
  Sometimes the list might be empty due to filters or selection parameters; adjust these to display selectable lines.
  
  
  
  If you are a developer or customizing consultant:
  
  Ensure that the program or transaction checks for line selection before proceeding.
  Implement proper error handling and user guidance messages.
  In ABAP, verify that the selection logic (e.g., SELECT-OPTIONS, ALV grid selections) is correctly implemented.
  Example check in ABAP:
  IF NOT lines_selected.
    MESSAGE w157(zmsg) WITH 'Select at least one line in the list'.
  ENDIF.
  
  
  
  
  
  Related Information
  
  Message Class: WXP (related to SAP Workflow or List Processing)
  Common Transactions: Workflow inbox, ALV reports, mass processing transactions.
  SAP Notes: Sometimes SAP Notes related to specific transactions or modules provide fixes or enhancements to handle selection better.
  User Training: Educate users on the importance of selecting lines before executing actions in list-based transactions.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WXP157 - Select at least one line in the list
  
  
  Cause
  No line selected in a list when required
  
  
  Solution
  Select one or more lines before proceeding
  
  
  Developer Tip
  Implement selection checks and user messages
  
  
  
  
  If you provide the specific transaction or context where this error occurs, I can give more tailored advice.