How To Fix /SCWM/SERIAL001 - At least one serial number locked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SERIAL -

• Message number: 001

• Message text: At least one serial number locked by user &1

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/SERIAL001 - At least one serial number locked by user &1 ?

  The SAP error message /SCWM/SERIAL001 indicates that at least one serial number is locked by a specific user. This typically occurs in the context of warehouse management and inventory handling, particularly when dealing with serialized products in SAP Extended Warehouse Management (EWM).
  Cause:
  The error is caused by a situation where a user is trying to perform an operation on a serial number that is currently locked by another user. This can happen in various scenarios, such as:
  
  A user is currently processing a transaction involving that serial number.
  The serial number is being used in a different transaction (e.g., goods receipt, goods issue, or transfer).
  There may be a session or transaction that has not been properly closed, leaving the serial number in a locked state.
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Identify the Locking User: The error message specifies the user who has locked the serial number. You can check the user’s active sessions or transactions to understand what they are doing with the serial number.
  
  
  Communicate with the User: If possible, reach out to the user who has locked the serial number and ask them to complete or cancel their transaction.
  
  
  Use Transaction SM12: You can use transaction code SM12 to view and manage lock entries in the system. Here, you can:
  
  Check for the specific serial number and the user who has locked it.
  If necessary, you can delete the lock entry (be cautious with this step, as it may disrupt the other user's work).
  
  
  
  Wait for the Lock to Release: If the locking user is performing a legitimate operation, it may be best to wait until they complete their transaction.
  
  
  Check for Background Jobs: Sometimes, background jobs may also lock serial numbers. Check if there are any background processes that might be holding the lock.
  
  
  Review System Configuration: If this issue occurs frequently, it may be worth reviewing the system configuration and user roles to ensure that there are no unnecessary locks being created.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review the SAP EWM documentation for best practices on handling serialized inventory and managing locks.
  User Training: Ensure that users are trained on how to properly handle serialized items and understand the implications of locking mechanisms in the system.
  
  By following these steps, you should be able to resolve the /SCWM/SERIAL001 error and prevent it from occurring in the future.