How To Fix /SAPAPO/OM126 - Negative stock quantity

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM -

• Message number: 126

• Message text: Negative stock quantity

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 /SAPAPO/OM126 - Negative stock quantity ?

  The SAP error message /SAPAPO/OM126 Negative stock quantity typically occurs in the Advanced Planning and Optimization (APO) module when there is an attempt to process a transaction that results in a negative stock quantity. This can happen during various operations, such as planning, order processing, or stock transfers.
  Cause:
  
  
  Incorrect Stock Levels: The most common cause is that the stock levels in the system are not accurately reflecting the actual inventory. This can happen due to:
  
  Manual adjustments that were not properly recorded.
  Inaccurate data entry during goods movements.
  Delays in updating stock levels after transactions.
  
  
  
  Planning Parameters: The planning parameters or settings may not be configured correctly, leading to unrealistic stock levels being calculated.
  
  
  Order Processing Issues: If there are orders that are being processed that exceed the available stock, this can lead to negative stock situations.
  
  
  Data Consistency Issues: There may be inconsistencies in the master data or transactional data that lead to discrepancies in stock levels.
  
  
  Solution:
  
  
  Check Stock Levels: Verify the current stock levels in the system. Use transaction codes like /SAPAPO/MC.9 or /SAPAPO/MC.1 to check stock and inventory levels.
  
  
  Adjust Stock: If you find discrepancies, you may need to adjust the stock levels manually using the appropriate transactions (e.g., goods receipt, goods issue).
  
  
  Review Planning Parameters: Check the planning parameters and settings in the APO system to ensure they are configured correctly. This includes checking safety stock levels, reorder points, and other relevant settings.
  
  
  Analyze Orders: Review the orders that are being processed to ensure they do not exceed the available stock. If necessary, adjust the orders or the stock levels accordingly.
  
  
  Data Consistency Check: Run consistency checks to identify and resolve any data inconsistencies. This may involve checking master data, transaction data, and any relevant configuration settings.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to the specific error message for additional troubleshooting steps and best practices.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO for stock management and planning.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that users have the appropriate roles and authorizations to perform stock adjustments and other related transactions.
  Training: Consider training for users on inventory management and APO functionalities to minimize errors in stock handling.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.