How To Fix L1126 - Quant & has been changed

SAP Error Message - Details

• Message type: E = Error

• Message class: L1 - Message handling for WM master data

• Message number: 126

• Message text: Quant & has been changed

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 L1126 - Quant & has been changed ?

  The SAP error message L1126, which states "Quant & has been changed," typically occurs in the context of inventory management and handling unit management within the SAP system. This error indicates that the quantity (quant) of a material in a storage location has been modified, and the system is unable to process the transaction due to this change.
  Cause:
  
  Concurrent Changes: The most common cause of this error is that the quantity of the material has been changed by another user or process while you were trying to perform an operation (like a goods movement, transfer, or inventory count).
  Locking Issues: The quant may be locked by another transaction, preventing your transaction from proceeding.
  Data Inconsistency: There may be inconsistencies in the database that lead to the system not being able to confirm the current state of the quant.
  
  Solution:
  
  Refresh the Data: If you suspect that the data has changed, refresh your screen or re-enter the transaction to get the latest data.
  Check for Concurrent Users: Verify if another user is working on the same quant. If so, you may need to wait until they complete their transaction.
  Review Lock Entries: Use transaction code SM12 to check for any lock entries related to the quant. If you find locks that are no longer needed, you can delete them (with caution).
  Reprocess the Transaction: After ensuring that no other transactions are affecting the quant, try to reprocess your transaction.
  Consult Logs: Check the application logs (transaction code SLG1) for more detailed information about the error and any related issues.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A, MB1B, MB1C, and MIGO for goods movements, as these are often where the error may occur.
  SAP Notes: Search for SAP Notes related to error L1126 in the SAP Support Portal for any specific fixes or updates.
  User Training: Ensure that users are trained on how to handle inventory transactions properly to minimize the chances of concurrent changes.
  
  By following these steps, you should be able to resolve the L1126 error and continue with your inventory management tasks in SAP.