How To Fix QE615 - No standard deviation available for the measured values

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 615

• Message text: No standard deviation available for the measured values

What causes this issue?

The standard deviation of the valid measured values for the sample or
the inspection characteristic is missing. However, the procedure you
selected needs this value for the share estimate.

System Response

The shares of units that are too small, too large, or nonconforming
were not calculated.

How to fix this error?

Record valid measured values and enter the missing value, or it is
calculated internally by the system.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QE615 - No standard deviation available for the measured values ?

  The SAP error message QE615 ("No standard deviation available for the measured values") typically occurs in the context of quality management (QM) when dealing with inspection results. This error indicates that the system is unable to calculate the standard deviation for a set of measured values, which is often required for statistical quality control processes.
  Causes:
  
  Insufficient Data: The most common cause is that there are not enough measured values to calculate a standard deviation. Standard deviation requires at least two data points.
  Missing or Incorrect Data: If the measured values are missing, incorrect, or not properly recorded, the system cannot compute the standard deviation.
  Measurement Type: The measurement type may not support standard deviation calculations. For example, certain qualitative measurements may not have a standard deviation.
  Configuration Issues: There may be configuration issues in the quality management module that prevent the calculation of standard deviation.
  
  Solutions:
  
  Check Measured Values: Ensure that there are at least two valid measured values recorded for the inspection lot. If there is only one value or none, you will need to add more measurements.
  Review Data Entry: Verify that all measured values are entered correctly and that there are no missing entries. Check for any discrepancies in the data.
  Inspect Measurement Type: Confirm that the measurement type you are using is appropriate for standard deviation calculations. If it is not, consider using a different measurement type.
  Configuration Review: If you suspect a configuration issue, consult with your SAP QM module administrator to review the settings related to statistical calculations.
  Use Alternative Calculations: If standard deviation cannot be calculated due to data limitations, consider using other statistical measures that may be applicable to your situation.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the QM module for detailed information on measurement types and statistical calculations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the QE615 error and successfully calculate the standard deviation for your measured values.