How To Fix WTADDI421 - Select a valid line

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 421

• Message text: Select a valid line

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WTADDI421 - Select a valid line ?

  SAP Error Message:
  
  WTADDI421 - Select a valid line
  
  Cause:
  The error message WTADDI421 - Select a valid line typically occurs in SAP when you are working with warehouse tasks or warehouse management transactions, and the system expects you to select a valid line item (e.g., a line in a list of warehouse tasks, transfer orders, or delivery items) but none or an invalid line is selected.
  Common scenarios include:
  
  Trying to perform an action (e.g., confirm, delete, or change) on a warehouse task or transfer order without selecting any line.
  Selecting a line that is not valid for the intended operation (e.g., a line that is already processed or locked).
  The screen or list is empty or the selection cursor is not on a valid line.
  
  
  Solution:
  
  
  Select a valid line:
  
  Make sure you select a line item in the list before performing the action. Click on the line or use the selection checkbox if available.
  
  
  Check the status of the line:
  
  Verify that the line you are selecting is valid for the operation you want to perform. For example, if you want to confirm a warehouse task, ensure the task is not already confirmed or deleted.
  
  
  Refresh the list:
  
  Sometimes the list might be outdated or empty due to a system or data issue. Refresh or re-execute the transaction to reload the data.
  
  
  Check user authorizations:
  
  Ensure you have the necessary authorizations to perform actions on the selected lines.
  
  
  Check for system bugs or notes:
  
  If the problem persists despite correct selection, check SAP Notes or OSS for any known issues related to the transaction or module you are working with.
  
  
  
  Related Information:
  
  Transaction codes: WM transactions like LT21, LT24, LT12, or warehouse task processing transactions.
  Module: Warehouse Management (WM), Extended Warehouse Management (EWM).
  SAP Notes: Search for WTADDI421 in SAP Support Portal for any specific notes or patches.
  User Guide: Refer to SAP WM/EWM documentation for proper handling of warehouse tasks and transfer orders.
  
  
  Summary:
  
  The error means you need to select a valid line item before proceeding. Ensure the line is selected and valid for the operation, refresh the data if needed, and verify your authorizations.