How To Fix QE363 - The standard deviation is not defined- a valuation is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: QE - RM-QSS Fehlertexte zur Ergebniserfassung

• Message number: 363

• Message text: The standard deviation is not defined- a valuation is not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message QE363 - The standard deviation is not defined- a valuation is not possible ?

  The SAP error message QE363, "The standard deviation is not defined - a valuation is not possible," typically occurs in the context of quality management and valuation of inspection lots. This error indicates that the system cannot calculate the standard deviation for the inspection lot because the necessary data is missing or not properly configured.
  Causes:
  
  Missing Inspection Results: The inspection lot may not have any recorded results, which are necessary for calculating the standard deviation.
  Incomplete Data: The data required for the calculation of standard deviation (like measurement values) may be incomplete or not entered correctly.
  Configuration Issues: The quality management settings in SAP may not be properly configured to allow for the calculation of standard deviation.
  Statistical Control: If the inspection lot is set up for statistical process control (SPC) and there are not enough data points, the standard deviation cannot be calculated.
  
  Solutions:
  
  Check Inspection Results: Ensure that all necessary inspection results have been recorded for the inspection lot. You can do this by navigating to the inspection lot and reviewing the results.
  Enter Missing Data: If there are missing measurement values, enter them to allow the system to calculate the standard deviation.
  Review Configuration: Check the configuration settings in the Quality Management module to ensure that they are set up correctly for standard deviation calculations. This may involve reviewing the settings for the inspection plan and the characteristics being measured.
  Statistical Data Requirements: Ensure that there are enough data points for the calculation. If the inspection lot is too small, consider combining it with other lots or increasing the sample size.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the configuration and requirements for standard deviation calculations in your version of SAP.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like QA32 (for managing inspection lots) or QE01 (for entering results) to navigate to the relevant areas in SAP.
  Quality Management Configuration: Familiarize yourself with the configuration settings in the Quality Management module, particularly those related to inspection plans and characteristics.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Quality Management.