How To Fix CNV_20345_CHECK027 - Differences regarding currency keys detected, merge not possible

CNV_20345_CHECK027 - Overview

• Message type: E = Error

• Message class: CNV_20345_CHECK - Message Class for 20345 Checks

• Message number: 027

• Message text: Differences regarding currency keys detected, merge not possible

What causes this issue?

The participating profit centers use different currencies. If you want
to merge the profit centers, a currency conversion must be done before
the conversion. If not, the mapping values must be changed.
You cannot run the transformation solution because certain prerequisites
have not been met. Please change your mapping accordingly or contact SAP
for support by creating a ticket using component CA-LT-CNV.

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.

CNV_20345_CHECK027 - Details

• The SAP error message CNV_20345_CHECK027 indicates that there are differences in currency keys detected during a data migration or conversion process, which prevents the merging of data. This error typically arises in the context of SAP data migration projects, especially when using tools like the SAP S/4HANA Migration Cockpit or other data conversion tools.
  
  Cause:
  The error occurs when the system identifies that there are inconsistencies in the currency keys between the source and target systems. This can happen due to:
  
  
  Different Currency Keys: The source and target systems may have different currency keys defined for the same currency. For example, if the source system uses "USD" as a currency key and the target system uses "US" or "USD1", this discrepancy will trigger the error.
  
  
  Missing Currency Configuration: The target system may not have the necessary currency configuration set up, leading to a mismatch.
  
  
  Data Inconsistencies: There may be inconsistencies in the data being migrated,