How To Fix QC303 - Conversion required from unit &2 to &3 for certificate charac. "&1"

SAP Error Message - Details

• Message type: E = Error

• Message class: QC - QM: Certificates

• Message number: 303

• Message text: Conversion required from unit &2 to &3 for certificate charac. "&1"

What causes this issue?

The quantitative value of the certificate characteristic was not in the
required unit.
Key (inspection lot/operation/characteristic): &V4&

System Response

The value is converted to the unit required in the inspection lot.
However, this can cause rounding errors.
The certificate value is no longer checked for the number of decimal
places required in the inspection characteristic.

How to fix this error?

Agree with the sender of the electronic certificate that for this
characteristic the measured values are transferred in the required
unit.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QC303 - Conversion required from unit &2 to &3 for certificate charac. "&1" ?

  The SAP error message QC303 indicates that there is a unit conversion issue related to a characteristic in a quality certificate. Specifically, it means that the system is trying to convert a value from one unit of measure (UoM) to another, but it cannot do so because the conversion is not defined or is not possible.
  Cause:
  
  Unit of Measure (UoM) Mismatch: The characteristic in question has a value in one unit (e.g., grams) that needs to be converted to another unit (e.g., kilograms), but the conversion factor is not defined in the system.
  Missing Conversion Factors: The conversion factors between the two units are not maintained in the system.
  Incorrect Configuration: The configuration for the characteristic or the material may not be set up correctly, leading to the inability to perform the conversion.
  
  Solution:
  
  
  Check Unit of Measure Settings:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) in SAP.
  Verify that the conversion factors between the two units of measure (e.g., &2 and &3) are defined correctly.
  
  
  
  Maintain Conversion Factors:
  
  If the conversion factors are missing, you will need to create them. This can be done in the same transaction (CUNI) by adding the necessary conversion entries.
  
  
  
  Review Characteristic Configuration:
  
  Check the configuration of the characteristic (e.g., "&1") in the quality management settings. Ensure that the characteristic is set up to allow for the required unit conversions.
  
  
  
  Check Material Master Data:
  
  Ensure that the material master data is correctly maintained, including the units of measure for the material in question.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct units or conversion factors, consult the relevant documentation or reach out to a subject matter expert within your organization.
  
  
  
  Related Information:
  
  Quality Management (QM) Module: This error is related to the Quality Management module in SAP, which deals with quality inspections and certificates.
  Unit of Measure (UoM): Understanding how units of measure work in SAP is crucial for resolving this error. Units can be defined at the material level and can have multiple conversions.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on unit conversions in quality management.
  
  By following these steps, you should be able to resolve the QC303 error and ensure that the necessary unit conversions are properly defined and functioning in your SAP system.