How To Fix CKMLDUVN507 - Only enter quantities with the same plus/minus sign

SAP Error Message - Details

• Message type: E = Error

• Message class: CKMLDUVN - Inventory differences distribution messages

• Message number: 507

• Message text: Only enter quantities with the same plus/minus sign

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CKMLDUVN507 - Only enter quantities with the same plus/minus sign ?

  The SAP error message CKMLDUVN507, which states "Only enter quantities with the same plus/minus sign," typically occurs in the context of inventory management or material valuation, particularly when dealing with the Material Ledger (ML) in SAP. This error indicates that there is an inconsistency in the sign of the quantities being entered in a transaction, such as a goods movement or a valuation adjustment.
  Cause:
  The error is triggered when you attempt to enter quantities that have different signs (i.e., a mix of positive and negative quantities) in a single transaction. For example, if you are trying to adjust inventory levels, you cannot have both a positive quantity (indicating an addition to inventory) and a negative quantity (indicating a reduction) in the same entry.
  Solution:
  To resolve this error, you should ensure that all quantities entered in the transaction have the same sign. Here are the steps you can take:
  
  
  Review the Entry: Check the quantities you are trying to enter. Make sure that they are all either positive or negative.
  
  
  Adjust Quantities: If you have both positive and negative quantities, separate them into different transactions. For example, if you need to add and remove quantities, do so in two separate entries.
  
  
  Check for Errors: Ensure that there are no typographical errors in the quantities being entered. Sometimes, a simple mistake can lead to this error.
  
  
  Consult Documentation: If you are unsure about the correct quantities to enter, refer to your organization's inventory management policies or consult with a colleague who is knowledgeable about the process.
  
  
  Test in a Sandbox: If possible, replicate the transaction in a test environment to ensure that you understand the correct procedure without affecting live data.
  
  
  Related Information:
  
  Material Ledger: This error is often associated with the Material Ledger functionality in SAP, which allows for real-time inventory valuation and tracking of material movements.
  Transaction Codes: The error may occur in various transaction codes related to inventory management, such as MB1A (Goods Withdrawal), MB1B (Transfer Posting), or CKM3 (Material Ledger).
  SAP Notes: Check SAP Notes for any updates or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Material Management (MM) or Controlling (CO) modules.