How To Fix QY313 - Formula must determine a number of samples greater than 0

SAP Error Message - Details

• Message type: E = Error

• Message class: QY - QM: Sample management

• Message number: 313

• Message text: Formula must determine a number of samples greater than 0

What causes this issue?

The number of material samples is calculated using a formula. A value is
determined using the formula that is less than or equal to 0.
The formula &v1& has the following parameter values:
Lot quantity,,,,,,,,P1 = &v2&
Number of containers,,,,P2 = &v3&
Number of primary samples,,P3 = &v4&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the formula in the sample-drawing procedure.
Check that the following conditions are fulfilled:
The determined number of primary samples is greater than 0.
The number of determined pooled samples is not less than 0.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QY313 - Formula must determine a number of samples greater than 0 ?

  The SAP error message QY313, which states "Formula must determine a number of samples greater than 0," typically occurs in the context of quality management (QM) when working with inspection plans or sampling procedures. This error indicates that the formula defined for determining the number of samples to be taken is resulting in a value of zero or is not properly configured to yield a positive number.
  Causes:
  
  Incorrect Formula Configuration: The formula used to calculate the number of samples may be incorrectly set up, leading to a result of zero.
  Data Issues: The data inputs used in the formula may be missing or incorrect, causing the calculation to fail.
  Sampling Procedure Settings: The sampling procedure may not be defined correctly, or the parameters set for the procedure may not allow for a positive sample size.
  Inspection Lot Characteristics: If the characteristics of the inspection lot do not meet the criteria defined in the formula, it may lead to a zero sample size.
  
  Solutions:
  
  Review the Formula: Check the formula used for calculating the number of samples. Ensure that it is correctly defined and that all necessary variables are included.
  Check Input Data: Verify that all data inputs required for the formula are present and correct. This includes checking master data, inspection lot data, and any other relevant parameters.
  Adjust Sampling Procedure: If the sampling procedure is not yielding a positive number, consider adjusting the settings or parameters to ensure that a valid sample size can be calculated.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to properly configure sampling procedures and formulas.
  Testing: After making changes, test the configuration with different scenarios to ensure that the formula consistently produces a valid number of samples.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuring sampling procedures.
  Quality Management Configuration: Familiarize yourself with the configuration settings in the Quality Management module, particularly those related to inspection plans and sampling procedures.
  User Forums and Communities: Engage with SAP user communities or forums where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.