How To Fix QC312 - Unit of measurement for certificate characteristic "&1" cannot be used

SAP Error Message - Details

• Message type: E = Error

• Message class: QC - QM: Certificates

• Message number: 312

• Message text: Unit of measurement for certificate characteristic "&1" cannot be used

What causes this issue?

The unit of measurement for the certificate characteristic "&V1&" could
not be identified or converted.
Key (inspection lot/operation/characteristic): &V2&

System Response

Data is not transferred.

How to fix this error?

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

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 QC312 - Unit of measurement for certificate characteristic "&1" cannot be used ?

  The SAP error message QC312 indicates that there is an issue with the unit of measurement (UoM) assigned to a certificate characteristic in the Quality Management (QM) module. This error typically arises when the unit of measurement specified for a characteristic is not valid or not compatible with the data being processed.
  Cause:
  
  Invalid Unit of Measurement: The unit of measurement assigned to the characteristic may not be defined in the system or may not be compatible with the characteristic's data type.
  Missing Configuration: The characteristic may not have been properly configured in the Quality Management settings, leading to inconsistencies.
  Data Entry Error: There may be a typo or incorrect entry in the characteristic's configuration or in the data being processed.
  Incompatibility with Material Master: The unit of measurement may not match the unit of measurement defined in the material master for the relevant material.
  
  Solution:
  
  
  Check Characteristic Configuration:
  
  Go to the characteristic configuration in the Quality Management module and verify that the unit of measurement is correctly defined.
  Ensure that the UoM is valid and exists in the system.
  
  
  
  Review Material Master:
  
  Check the material master data for the relevant material to ensure that the unit of measurement is consistent with the characteristic.
  If necessary, update the material master to reflect the correct unit of measurement.
  
  
  
  Adjust Certificate Configuration:
  
  If the characteristic is part of a certificate, review the certificate configuration to ensure that all characteristics and their units of measurement are correctly defined.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on configuring characteristics and units of measurement in the QM module.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the process again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as CT04 (Characteristic) to check and modify characteristics, and MM02 (Change Material) to review material master data.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  User Roles: Ensure that you have the necessary authorizations to make changes to characteristics and material master data.
  
  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.