How To Fix WTADDI421 - Select a valid line

WTADDI421 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

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WTADDI421 - Details

• 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