How To Fix CNV_DMC_SIN272 - Tax Number for tax category: &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 272

• Message text: Tax Number for tax category: &1 already exists

What causes this issue?

With this object you can only add new tax numbers with new tax
categories. You can't change already existing entries.

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?

Delete these records from the template or change your mapping.

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_DMC_SIN272 - Tax Number for tax category: &1 already exists ?

  The SAP error message CNV_DMC_SIN272 indicates that there is a duplicate tax number for a specific tax category in the system. This error typically arises during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  The error occurs when:
  
  A tax number that is being imported or created already exists in the system for the specified tax category.
  There may be a mismatch in the data being migrated, leading to duplicate entries.
  The data source may contain multiple entries for the same tax number and tax category combination.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Check the source data for duplicates. Ensure that the tax numbers for the specified tax category are unique.
  Use transaction codes like SE16 or SE11 to query the relevant tables (e.g., T007 for tax categories) to find existing entries.
  
  
  
  Data Cleansing:
  
  Clean the source data to remove or consolidate duplicate tax numbers before migration.
  Ensure that the tax numbers are correctly formatted and valid.
  
  
  
  Adjust Migration Settings:
  
  If applicable, adjust the migration settings to handle duplicates. Some tools may allow you to skip existing records or update them instead of creating new ones.
  
  
  
  Manual Entry:
  
  If the duplicates are valid and should coexist, consider entering them manually in the system to avoid conflicts during the migration process.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific migration tool you are using for any additional guidance on handling this error.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test migration to ensure that the error does not reoccur.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and others that may help in analyzing the data.
  SAP Notes: Check for any SAP Notes related to the CNV_DMC_SIN272 error for specific patches or updates that may address known issues.
  Data Migration Cockpit: If you are using the SAP Data Migration Cockpit, refer to its documentation for best practices on data preparation and migration.
  
  By following these steps, you should be able to resolve the CNV_DMC_SIN272 error and successfully complete your data migration process.