How To Fix CKMLDUVN018 - Difference quantity and quantity have different +/- signs

SAP Error Message - Details

• Message type: E = Error

• Message class: CKMLDUVN - Inventory differences distribution messages

• Message number: 018

• Message text: Difference quantity and quantity have different +/- signs

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CKMLDUVN018 - Difference quantity and quantity have different +/- signs ?

  The SAP error message CKMLDUVN018, which states "Difference quantity and quantity have different +/- signs," typically occurs in the context of Material Ledger (ML) and inventory valuation. This error indicates that there is a discrepancy in the sign of the quantities involved in a transaction, which can lead to inconsistencies in inventory valuation and accounting.
  Cause:
  
  Data Entry Errors: The most common cause is incorrect data entry where the quantities are entered with opposite signs (e.g., a positive quantity for a receipt and a negative quantity for a withdrawal).
  Configuration Issues: Incorrect configuration in the Material Ledger settings or valuation methods can lead to this error.
  Posting Errors: Errors during the posting of goods movements, such as goods receipts or goods issues, can also trigger this message.
  Revaluation or Adjustments: If there are adjustments or revaluations being processed that involve quantities with different signs, this error may arise.
  
  Solution:
  
  Review Transactions: Check the relevant transactions that led to this error. Look for any discrepancies in the quantities entered. Ensure that the signs of the quantities are consistent.
  Correct Data Entry: If you find any incorrect entries, correct them to ensure that the quantities have the same sign where appropriate.
  Check Configuration: Review the configuration settings in the Material Ledger and ensure that they are set up correctly. This includes checking the valuation methods and any related settings.
  Reprocess Transactions: If the error occurred during a batch process or mass transaction, consider reprocessing those transactions after correcting any identified issues.
  Consult Documentation: Refer to SAP documentation or notes related to the Material Ledger and the specific error message for additional guidance.
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like CKM3 (Display Material Ledger Document) or CKMLCP (Material Ledger Closing) to analyze the relevant documents and postings.
  Material Ledger Configuration: Familiarize yourself with the configuration settings for the Material Ledger in transaction OMX1 or OMX2.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.