How To Fix WOST_WSPR_MODEL004 - Material &: The quantity must not be negative

SAP Error Message - Details

• Message type: E = Error

• Message class: WOST_WSPR_MODEL -

• Message number: 004

• Message text: Material &: The quantity must not be negative

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 WOST_WSPR_MODEL004 - Material &: The quantity must not be negative ?

  The SAP error message WOST_WSPR_MODEL004 with the description "Material &: The quantity must not be negative" typically occurs in the context of inventory management or material planning when a transaction attempts to process a negative quantity for a material. This can happen in various scenarios, such as during goods movements, stock transfers, or inventory adjustments.
  Causes:
  
  Negative Quantity Entry: The most straightforward cause is that a user is trying to enter a negative quantity for a material, which is not allowed in SAP.
  Incorrect Configuration: The system may be configured to disallow negative stock levels, and an attempt to process a transaction that would result in negative stock is made.
  Data Entry Error: A typographical error during data entry could lead to an unintended negative quantity.
  System Bugs or Issues: Occasionally, there may be bugs or issues in the system that lead to unexpected behavior.
  
  Solutions:
  
  Check Quantity Input: Verify the quantity being entered in the transaction. Ensure that it is a positive number.
  Review Transaction Type: Ensure that the type of transaction being performed allows for the movement of materials without resulting in negative quantities.
  Stock Levels: Check the current stock levels of the material in question. If the stock is already at zero, any attempt to reduce it further will trigger this error.
  Adjust Inventory: If you need to adjust inventory, ensure that you are following the correct procedures to do so without attempting to create negative stock.
  Consult Documentation: Review SAP documentation or help files related to the specific transaction you are performing for additional guidance.
  User Training: If this error is common among users, consider providing additional training on how to properly enter quantities in SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MIGO for goods movements, MB1A for goods issues) to understand where this error might occur.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Permissions: Ensure that users have the appropriate roles and permissions to perform the transactions they are attempting.
  System Configuration: Review the configuration settings in the Material Management (MM) module to ensure that they align with your business processes.
  
  If the issue persists after checking these aspects, it may be beneficial to consult with your SAP support team or a technical consultant for further investigation.