How To Fix QC084 - Unit &1 cannot be converted to unit &2

SAP Error Message - Details

• Message type: E = Error

• Message class: QC - QM: Certificates

• Message number: 084

• Message text: Unit &1 cannot be converted to unit &2

What causes this issue?

You have attempted to convert the unit &V1& to unit &V2&. This is not,
however, possible. There are various possible causes for this:
The units are without dimension (absolute unit of measure).
The dimensions of the two units do not correspond.
A field overflow occurs when the unit is converted.

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 entries you have made.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QC084 - Unit &1 cannot be converted to unit &2 ?

  The SAP error message QC084 indicates that there is an issue with unit conversion in the Quality Management (QM) module. Specifically, it means that the system is unable to convert a quantity from one unit of measure (UoM) to another. This can occur in various scenarios, such as during inspection lot processing, quality notifications, or when working with material master data.
  Cause
  The error can be caused by several factors, including:
  
  Missing Conversion Factors: The conversion factors between the two units of measure are not defined in the system.
  Incorrect Unit of Measure: The unit of measure being used may not be valid for the material or may not be set up correctly in the material master.
  Unit of Measure Group Issues: The units of measure may not belong to the same unit of measure group, which can prevent conversion.
  Configuration Issues: There may be configuration issues in the system related to the handling of units of measure.
  
  Solution
  To resolve the QC084 error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the units of measure defined for the material.
  Ensure that the base unit of measure and any alternative units of measure are correctly defined.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the material master under the "Units of Measure" view.
  Ensure that the conversion factors between the units of measure are correctly set up.
  
  
  
  Review Unit of Measure Groups:
  
  Check if the units of measure belong to the same unit of measure group. If not, you may need to adjust the configuration or use compatible units.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings in the SAP system related to units of measure. This can be done through transaction code SPRO, navigating to the relevant QM settings.
  Ensure that the settings for unit conversions are correctly configured.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on unit conversions and related settings.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test to see if the error persists. Create a new inspection lot or perform the action that triggered the error to verify that the issue is resolved.
  
  
  
  Related Information
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), SPRO (Customizing).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to unit conversions in your version of SAP.
  User Roles: Ensure that you have the necessary authorizations to make changes to material master data and configuration settings.
  
  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 the QM module for further assistance.