How To Fix CNV_20211_CHECK053 - Temporary duplicates possible due to mapping of companies &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20211_CHECK - Messages for check functions (company conversion)

• Message number: 053

• Message text: Temporary duplicates possible due to mapping of companies &1 and &2

What causes this issue?

<DS:TX.CNV_MBT_TEMP_DUPLICATES>Temporary duplicates</> possible due to
mapping of the companies &V1& and &V2&.
According to the mapping, you plan to convert company &V1& into &V2&.
However, company &V2& exists already and will be converted as defined by
the mapping to &V3&. In this case, temporary duplicates may occur in the
database if company &V1& is converted at a point in time when company
&V2& 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_20211_CHECK053 - Temporary duplicates possible due to mapping of companies &1 and &2 ?

  The SAP error message CNV_20211_CHECK053 indicates that there are potential temporary duplicates in the mapping of companies during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error occurs when there are overlapping or conflicting mappings between two companies (identified as &1 and &2 in the error message). This can happen due to:
  
  Duplicate Entries: There may be duplicate entries in the mapping table for the two companies.
  Incorrect Mapping: The mapping configuration may not be set up correctly, leading to potential conflicts.
  Data Overlap: The data being migrated may have overlapping records that are not properly distinguished between the two companies.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration for the two companies involved. Ensure that there are no duplicate mappings or conflicting entries.
  
  
  
  Check for Duplicates:
  
  Look for duplicate entries in the source data that may be causing the conflict. This can involve querying the database or reviewing the data files being used for migration.
  
  
  
  Adjust Mapping:
  
  If necessary, adjust the mapping to ensure that each company has a unique and clear mapping without overlaps.
  
  
  
  Data Cleansing:
  
  Perform data cleansing on the source data to eliminate any duplicates or conflicts before attempting the migration again.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or best practices.
  
  
  
  Testing:
  
  After making adjustments, conduct a test migration to ensure that the issue has been resolved and that no further duplicates are present.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it may have specific features to help manage mappings and data transformations.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to avoid similar issues in the future.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.