How To Fix /SCWM/L3020 - Unprocessed queues still exist for HU &1; HU WT not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/L3 -

• Message number: 020

• Message text: Unprocessed queues still exist for HU &1; HU WT not possible

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/L3020 - Unprocessed queues still exist for HU &1; HU WT not possible ?

  The SAP error message /SCWM/L3020 Unprocessed queues still exist for HU &1; HU WT not possible typically occurs in the SAP Extended Warehouse Management (EWM) module. This error indicates that there are unprocessed queues associated with a Handling Unit (HU), which prevents the system from performing a Warehouse Task (WT) for that HU.
  Cause:
  The error is usually caused by one or more of the following reasons:
  
  Pending Queue Entries: There are still open or unprocessed queue entries related to the Handling Unit (HU) in the system.
  Incomplete Processes: The HU may be involved in a process that has not been completed, such as picking, packing, or putaway.
  System Configuration Issues: There may be configuration settings in the EWM that are not aligned with the current warehouse processes.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Queue Entries:
  
  Use transaction /SCWM/QUEUE to check for any unprocessed queues related to the specific Handling Unit (HU).
  Identify the queues that are still open and determine why they are not processed.
  
  
  
  Process Pending Queues:
  
  If there are pending queues, process them accordingly. This may involve completing the necessary warehouse tasks or correcting any issues that are preventing the queues from being processed.
  
  
  
  Review HU Status:
  
  Check the status of the Handling Unit to ensure it is in a state that allows for further processing. You can use transaction /SCWM/HU to view the details of the HU.
  
  
  
  Check for Incomplete Tasks:
  
  Ensure that there are no incomplete warehouse tasks associated with the HU. If there are, complete or cancel those tasks as necessary.
  
  
  
  Consult Logs and Messages:
  
  Review any logs or messages in the system that may provide additional context or details about the issue.
  
  
  
  Configuration Review:
  
  If the issue persists, review the EWM configuration settings to ensure they are set up correctly for your warehouse processes.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP documentation for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/QUEUE, /SCWM/HU, and /SCWM/WT for managing queues, handling units, and warehouse tasks.
  SAP Notes: Check for any SAP Notes related to this error message for potential bug fixes or additional guidance.
  Documentation: Review the SAP EWM documentation for best practices on handling queues and managing handling units.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /SCWM/L3020.