How To Fix CNV_20320_CHECK030 - Differences regarding units detected, merge not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20320_CHECK - Messages for check functions (Activity Types merge)

• Message number: 030

• Message text: Differences regarding units detected, merge not possible

What causes this issue?

The participating activity types use different units. Activity Types
with different units cannot be merged.
You cannot run the transformation solution because certain prerequisites
have not been met. Please change your mapping accordingly.

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?

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 CNV_20320_CHECK030 - Differences regarding units detected, merge not possible ?

  The SAP error message CNV_20320_CHECK030 indicates that there are differences in units of measure (UoM) detected during a data migration or conversion process, which prevents the merging of records. This error typically arises in the context of SAP data migration projects, particularly when using tools like the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  The error occurs when the system identifies that the units of measure for certain records are inconsistent. For example, if you are trying to merge or convert materials or products that have different units of measure (e.g., one is in kilograms and another in grams), the system cannot proceed with the operation because it cannot determine how to reconcile these differences.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Records: Check the logs or error messages to identify which specific records are causing the issue. This may involve looking at the data that is being migrated or converted.
  
  
  Standardize Units of Measure: Ensure that all records being processed have a consistent unit of measure. You may need to convert some records to match the others. For example, if you have some items in kilograms and others in grams, convert all to grams or kilograms as appropriate.
  
  
  Adjust Master Data: If the records are related to master data (like materials or products), you may need to adjust the master data in the source system or in the target system to ensure consistency.
  
  
  Use Conversion Factors: If applicable, apply conversion factors to standardize the units of measure across the records. This may involve creating a mapping table that defines how different units relate to each other.
  
  
  Re-run the Migration: After making the necessary adjustments, re-run the migration or conversion process to see if the error persists.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or best practices.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, including data cleansing and validation techniques.
  Unit of Measure Configuration: Review the configuration of units of measure in your SAP system to ensure that they are set up correctly and consistently across different materials or products.
  
  By addressing the inconsistencies in units of measure, you should be able to resolve the CNV_20320_CHECK030 error and successfully complete your data migration or conversion process.