How To Fix CN345 - A negative planned independent requirement is not permitted. Check entry

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 345

• Message text: A negative planned independent requirement is not permitted. Check entry

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN345 - A negative planned independent requirement is not permitted. Check entry ?

  The SAP error message CN345, which states "A negative planned independent requirement is not permitted. Check entry," typically occurs in the context of production planning and control when dealing with planned independent requirements (PIRs) in SAP.
  Cause:
  The error arises when a user attempts to enter a planned independent requirement with a negative quantity. In SAP, planned independent requirements are used to forecast demand for materials, and negative values do not make sense in this context, as they would imply a negative demand, which is not allowed.
  Solution:
  To resolve this error, you should:
  
  
  Check the Entry: Review the entry you are trying to make. Ensure that the quantity for the planned independent requirement is zero or a positive number. If you have mistakenly entered a negative value, correct it.
  
  
  Review the Planning Strategy: If you are using a specific planning strategy that might lead to negative requirements, ensure that the strategy is appropriate for your scenario.
  
  
  Adjust the Demand Forecast: If the negative requirement was intended to adjust for over-forecasting, consider adjusting the overall demand forecast rather than entering a negative PIR.
  
  
  Use Transaction Codes: Use transaction codes like MD61 (Create Planned Independent Requirements) or MD62 (Change Planned Independent Requirements) to manage your PIRs correctly.
  
  
  Consult Documentation: If you are unsure about the correct values or the planning strategy, refer to SAP documentation or consult with your SAP functional consultant for guidance.
  
  
  Related Information:
  
  Planned Independent Requirements (PIR): These are used in SAP to represent forecasted demand for materials. They are essential for production planning and inventory management.
  Planning Strategies: Different planning strategies in SAP (like Make-to-Stock, Make-to-Order, etc.) dictate how requirements are managed and can affect how PIRs are set up.
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing PIRs, such as MD61, MD62, MD63, and MD04 (to view stock/requirements list).
  
  By ensuring that all entries for planned independent requirements are non-negative and correctly configured, you should be able to avoid this error in the future.