How To Fix TXS_MESSAGES036 - Cannot find mappings between ext. tax codes and SAP S/4HANA tax codes

SAP Error Message - Details

• Message type: E = Error

• Message class: TXS_MESSAGES - Tax Service Messages class

• Message number: 036

• Message text: Cannot find mappings between ext. tax codes and SAP S/4HANA tax codes

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

In the
<DS:SIMG.V_TXS_TAX_CODE>Map S/4HANA Tax Codes to External Tax Codes</>
Customizing activity, map the relation between external tax codes and
SAP S/4HANA tax codes.

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 TXS_MESSAGES036 - Cannot find mappings between ext. tax codes and SAP S/4HANA tax codes ?

  The SAP error message TXS_MESSAGES036 indicates that the system cannot find the mappings between external tax codes and the internal SAP S/4HANA tax codes. This issue typically arises in the context of tax determination processes, especially when integrating with external systems or when using tax calculation services.
  Cause:
  
  Missing Mapping Configuration: The most common cause is that the necessary mappings between the external tax codes (used by external systems or tax calculation services) and the internal SAP tax codes have not been defined in the system.
  Incorrect Configuration: There may be incorrect or incomplete configuration in the tax code mapping settings.
  Data Migration Issues: If you have recently migrated data or upgraded your system, the mappings may not have been transferred correctly.
  External Tax Provider Issues: If you are using an external tax provider, there may be issues with the configuration or communication between SAP and the external service.
  
  Solution:
  
  
  Define Tax Code Mappings:
  
  Go to the transaction code OB40 (or the relevant configuration path in SPRO) to define the mapping between external tax codes and SAP tax codes.
  Ensure that all necessary external tax codes are mapped to the corresponding SAP tax codes.
  
  
  
  Check Configuration:
  
  Review the configuration settings for tax determination in your SAP system. Ensure that all relevant settings are correctly configured.
  Verify that the tax codes are active and correctly set up in the system.
  
  
  
  Data Migration Review:
  
  If you have recently migrated data, check the migration logs and ensure that all necessary mappings were included in the migration process.
  
  
  
  Consult External Tax Provider:
  
  If you are using an external tax calculation service, check the configuration and ensure that the external tax codes are correctly set up in the external system.
  Ensure that the communication between SAP and the external provider is functioning correctly.
  
  
  
  Testing:
  
  After making the necessary changes, perform tests to ensure that the mappings are working as expected and that the error message no longer appears.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OB40: Maintain Tax Code Mapping
  SPRO: Access to SAP Reference IMG for configuration
  
  
  Documentation: Refer to SAP Help documentation for detailed guidance on tax configuration and mapping.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to tax code mapping or the error message TXS_MESSAGES036.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, as they can provide more tailored guidance based on your specific system configuration and setup.