How To Fix /SCWM/STOCK_UPLOAD021 - Negative quantities (&1 &2) are not possible in the stock data transfer

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/STOCK_UPLOAD -

• Message number: 021

• Message text: Negative quantities (&1 &2) are not possible in the stock data transfer

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SCWM/STOCK_UPLOAD021 - Negative quantities (&1 &2) are not possible in the stock data transfer ?

  The SAP error message /SCWM/STOCK_UPLOAD021 indicates that there is an attempt to upload stock data with negative quantities, which is not allowed in the stock data transfer process. This error typically occurs in the context of the Extended Warehouse Management (EWM) module when trying to transfer stock information into the system.
  Cause:
  
  Negative Quantity Input: The most common cause of this error is that the data being uploaded contains negative quantities for stock items. This could be due to incorrect data preparation or extraction from the source system.
  Data Mapping Issues: If the data mapping from the source system to the target system is not correctly configured, it may lead to negative values being interpreted incorrectly.
  Business Logic Violations: In some cases, the business logic defined in the system may not allow for negative stock quantities, especially if the system is set up to prevent negative inventory levels.
  
  Solution:
  
  Check the Data Source: Review the data being uploaded to ensure that there are no negative quantities. If negative quantities are present, correct them in the source data before attempting the upload again.
  Data Validation: Implement validation checks in the data preparation process to catch negative quantities before they are sent to SAP.
  Adjust Business Logic: If negative quantities are valid in your business process (e.g., for returns or adjustments), you may need to adjust the business logic or configuration in SAP to allow for such cases. However, this should be done with caution and in accordance with business requirements.
  Use Correct Transaction Codes: Ensure that you are using the correct transaction codes and processes for stock uploads. For example, if you are trying to perform a stock transfer, ensure that the correct procedures are followed.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on stock data uploads and the handling of quantities.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on stock data uploads.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/PRDCT for product master data and /SCWM/GR for goods receipt processes.
  EWM Configuration: Review the configuration settings in EWM related to stock management and inventory control to ensure they align with your business processes.
  Testing: Before performing bulk uploads, consider testing with a small dataset to ensure that the process works as expected without errors.
  
  By addressing the root cause of the negative quantities and ensuring proper data handling, you should be able to resolve the error and successfully upload stock data into SAP.