How To Fix /SCWM/GM064 - Posting change quantity reduced due to missing available quantity

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/GM -

• Message number: 064

• Message text: Posting change quantity reduced due to missing available quantity

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SCWM/GM064 - Posting change quantity reduced due to missing available quantity ?

  The SAP error message /SCWM/GM064 indicates that a posting change quantity has been reduced because there is not enough available quantity in the specified storage location or stock type. This error typically occurs in the context of warehouse management and inventory handling in SAP Extended Warehouse Management (EWM).
  Cause:
  
  Insufficient Stock: The primary cause of this error is that the quantity you are trying to post for a change exceeds the available stock in the specified location.
  Stock Type Restrictions: The stock may be in a restricted stock type (e.g., blocked stock, quality inspection stock) that cannot be used for the posting change.
  Incorrect Storage Location: The storage location specified in the posting may not have the expected quantity available.
  Inventory Management Issues: There may be discrepancies in inventory records due to previous transactions that were not properly posted or updated.
  
  Solution:
  
  Check Available Stock: Verify the available stock in the specified storage location using transaction codes like MMBE (Stock Overview) or LX03 (Warehouse Stock Overview). Ensure that the quantity you are trying to post is available.
  Adjust Posting Quantity: If the available stock is less than the quantity you are trying to post, adjust the posting quantity to match the available stock.
  Review Stock Types: Ensure that the stock you are trying to use is not in a restricted stock type. If it is, you may need to move it to unrestricted stock before proceeding with the posting change.
  Inventory Reconciliation: If there are discrepancies, perform an inventory reconciliation to ensure that the stock levels in the system match the physical stock.
  Check for Open Transactions: Look for any open transactions that may be affecting the stock levels, such as pending goods movements or stock transfers.
  Consult with Warehouse Management: If you are unsure about the stock levels or the posting process, consult with your warehouse management team for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MMBE, LX03, MB1A, MB1B, and MB1C for stock movements and inventory management.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on warehouse management and inventory handling for best practices and troubleshooting steps.
  User Roles and Permissions: Ensure that you have the necessary permissions to perform the posting changes in the system.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.