How To Fix CNV_20600_CHECK056 - Temporary duplicates possible due to mapping of company codes

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20600_CHECK - Messages for Check classes

• Message number: 056

• Message text: Temporary duplicates possible due to mapping of company codes

What causes this issue?

<DS:TX.CNV_MBT_TEMP_DUPLICATES>Temporary duplicates</> possible due to
mapping of the company codes.
Example: Company code A is renamed into B (mapping: A -> B). Company
code B is renamed into C (mapping: B -> C). In this case, temporary
duplicates may occur in the database if company code A is converted at a
point in time when company code B has not yet been converted. If
temporary duplicates are likely to occur, the conversion programs must
be generated in a different way.

System Response

Warning

How to fix this error?

No action is required.
Temporary duplicates do not represent a problem to the transformation
solution. However, temporary duplicates may result in a longer
conversion runtime.

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 CNV_20600_CHECK056 - Temporary duplicates possible due to mapping of company codes ?

  The SAP error message CNV_20600_CHECK056 indicates that there are potential temporary duplicates in the mapping of company codes during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion scenarios.
  Cause:
  The error is caused by the mapping of company codes in the source and target systems. Specifically, it suggests that there are overlapping or conflicting mappings that could lead to duplicate entries in the target system. This can happen if:
  
  The same company code from the source system is mapped to multiple company codes in the target system.
  There are inconsistencies in the mapping configuration, such as incorrect or missing entries.
  The data being migrated contains duplicates that have not been resolved prior to the migration.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Mapping Configuration:
  
  Check the mapping of company codes in the migration tool. Ensure that each source company code is uniquely mapped to a target company code.
  Look for any duplicate mappings or inconsistencies in the mapping table.
  
  
  
  Data Cleansing:
  
  Before migration, perform data cleansing on the source data to eliminate any duplicates or inconsistencies.
  Ensure that the company codes in the source system are unique and correctly aligned with the target system's structure.
  
  
  
  Adjust Mapping:
  
  If you find that multiple source company codes are mapped to the same target company code, consider adjusting the mapping to ensure that each target company code receives data from only one source company code.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration tool you are using. There may be additional guidelines or best practices for mapping company codes.
  
  
  
  Testing:
  
  After making adjustments, conduct a test migration with a subset of data to verify that the changes resolve the error and that no duplicates are created in the target system.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration and mapping issues.
  Migration Tools: Familiarize yourself with the specific migration tools and their functionalities, as they may have built-in checks or features to help manage company code mappings.
  Data Migration Best Practices: Review best practices for data migration in SAP, which often include steps for data validation, cleansing, and mapping to avoid issues like duplicates.
  
  By following these steps, you should be able to resolve the CNV_20600_CHECK056 error and ensure a smooth data migration process.