How To Fix W4021 - &: & WM transfer order exists

SAP Error Message - Details

• Message type: E = Error

• Message class: W4 - Messages for material discontinuation

• Message number: 021

• Message text: &: & WM transfer order exists

What causes this issue?

A (warehouse management) transfer order still exists for the material.

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?

Delete the WM transfer order for the material.

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 W4021 - &: & WM transfer order exists ?

  Certainly! Here's a detailed explanation for the SAP error message W4021:
  
  SAP Error Message: W4021 & : & WM transfer order exists
  
  1. Cause
  The message W4021 typically occurs in the context of Warehouse Management (WM) in SAP. It indicates that a Warehouse Management (WM) transfer order already exists for the material/document in question.
  
  This usually happens when you try to create or post a goods movement (e.g., goods receipt, goods issue, transfer posting) in Inventory Management (IM), but there is already an open or existing transfer order in WM for the same material and storage location.
  The system prevents duplicate or conflicting transfer orders to avoid inconsistencies in warehouse stock management.
  It can also occur if a previous transfer order was created but not yet confirmed or closed.
  
  
  2. Solution
  To resolve the W4021 message, you should:
  
  
  Check for existing transfer orders:
  
  Use transaction LT22 (Display Transfer Order) or LT21 (Display Transfer Order by Document) to find existing transfer orders related to the material and storage location.
  Alternatively, use LT23 to list transfer orders by warehouse number, material, or other criteria.
  
  
  
  Confirm or cancel existing transfer orders:
  
  If the transfer order is still open and valid, confirm it using LT12 (Confirm Transfer Order).
  If the transfer order is obsolete or incorrect, cancel it using LT15 (Delete Transfer Order).
  
  
  
  After confirming or deleting the existing transfer order, retry the goods movement or posting.
  
  
  Check for incomplete or stuck transfer orders:
  
  Sometimes transfer orders remain open due to system errors or incomplete processing.
  Investigate and resolve any issues causing transfer orders to remain open.
  
  
  
  Coordinate with Warehouse personnel:
  
  Ensure that warehouse staff confirm or clear transfer orders timely to avoid blocking further postings.
  
  
  
  
  3. Related Information
  
  
  Transaction Codes:
  
  LT21 - Display Transfer Order by Document
  LT22 - Display Transfer Order
  LT23 - List Transfer Orders
  LT12 - Confirm Transfer Order
  LT15 - Delete Transfer Order
  
  
  
  Modules involved:
  
  MM-IM (Inventory Management)
  LE-WM (Warehouse Management)
  
  
  
  Typical scenarios:
  
  Posting goods receipt or goods issue when WM is active.
  Transfer postings between storage locations managed by WM.
  Handling stock in warehouse managed storage locations.
  
  
  
  Additional notes:
  
  Ensure that the warehouse management process is synchronized with inventory management.
  Regularly monitor transfer orders to avoid backlog.
  If the problem persists, check for custom enhancements or user exits that might interfere with transfer order creation.
  
  
  
  
  If you need further assistance, please provide the exact transaction or process step where the error occurs, and I can help with more specific guidance.