How To Fix CA_TTE206 - External Mapping of Tax Code '&1' is not unique (Country &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CA_TTE - TTE Messages

• Message number: 206

• Message text: External Mapping of Tax Code '&1' is not unique (Country &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CA_TTE206 - External Mapping of Tax Code '&1' is not unique (Country &2) ?

  The SAP error message CA_TTE206 indicates that there is an issue with the external mapping of a tax code in the system. Specifically, it means that the tax code you are trying to use is not unique for the specified country. This can occur in scenarios where multiple tax codes are mapped to the same external tax code, leading to ambiguity in tax determination.
  Cause:
  
  Duplicate Mapping: The primary cause of this error is that there are multiple entries in the external tax code mapping table for the same tax code and country combination.
  Configuration Issues: Incorrect configuration in the tax code mapping settings can lead to this error.
  Data Migration Issues: If data was migrated from another system, it may have resulted in duplicate entries.
  
  Solution:
  To resolve the CA_TTE206 error, you can follow these steps:
  
  
  Check External Tax Code Mapping:
  
  Go to the transaction code OB40 (or the relevant transaction for your version) to check the external tax code mapping.
  Look for the tax code in question and verify if there are multiple entries for the same tax code and country.
  
  
  
  Remove Duplicates:
  
  If you find duplicate entries, you will need to remove or consolidate them to ensure that each tax code is mapped uniquely to an external tax code for the specified country.
  
  
  
  Review Configuration:
  
  Ensure that the configuration for tax codes and their mappings is set up correctly. This includes checking the settings in the relevant customizing transactions (e.g., OBYZ for tax code determination).
  
  
  
  Test Changes:
  
  After making changes, test the tax code mapping to ensure that the error no longer occurs. You can do this by trying to execute the transaction that previously triggered the error.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct mappings, refer to SAP documentation or consult with your SAP functional consultant for guidance on the appropriate tax code mappings for your specific business requirements.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OB40: Maintain External Tax Code Mapping
  OBYZ: Maintain Tax Codes
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to tax code mapping issues.
  Testing Environment: Always perform changes in a development or testing environment before applying them to production to avoid disruptions.
  
  By following these steps, you should be able to resolve the CA_TTE206 error and ensure that your tax code mappings are correctly configured.