How To Fix QD823 - The lot size cannot be negative

SAP Error Message - Details

• Message type: E = Error

• Message class: QD - Message-Id. für Dynamisierung

• Message number: 823

• Message text: The lot size cannot be negative

Self-Explanatory Message

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• What is the cause and solution for SAP error message QD823 - The lot size cannot be negative ?

  The SAP error message QD823, which states "The lot size cannot be negative," typically occurs in the context of production planning or inventory management when a negative lot size is being processed. This can happen in various scenarios, such as during the creation of production orders, purchase orders, or when managing stock levels.
  Causes:
  
  Incorrect Input: A user may have inadvertently entered a negative value for the lot size in a transaction or during the configuration of a material.
  Master Data Issues: The material master data or the production version may have incorrect settings that allow for negative lot sizes.
  Configuration Errors: The settings in the production planning module may not be correctly configured to handle lot sizes.
  Data Migration Issues: If data has been migrated from another system, it may have included negative values that are not valid in SAP.
  
  Solutions:
  
  Check Input Values: Review the transaction where the error occurred and ensure that all input values, especially the lot size, are positive.
  Review Material Master Data: Go to the material master (transaction code MM03) and check the settings related to lot size. Ensure that the lot size is defined correctly and does not allow for negative values.
  Check Production Version: If applicable, verify the production version settings (transaction code C202) to ensure that the lot size is set correctly.
  Configuration Review: Consult with your SAP configuration team to review the settings in the production planning module. Ensure that the lot size settings are appropriate for your business processes.
  Data Validation: If data migration is involved, validate the data to ensure that no negative lot sizes are present. Correct any discrepancies found.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on lot size settings and constraints.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Material Master), C202 (Production Version), and CO01 (Create Production Order) to navigate and check settings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on the correct procedures for entering lot sizes and managing inventory to prevent future occurrences of this error.
  
  If the issue persists after checking these areas, it may be beneficial to engage with SAP support or your internal SAP team for further investigation.