How To Fix ITMF1001 - Impossible to change tax code; enter a reason for manual change

SAP Error Message - Details

• Message type: E = Error

• Message class: ITMF1 - Tax Management Framework Message Class

• Message number: 001

• Message text: Impossible to change tax code; enter a reason for manual change

What causes this issue?

You have tried to change the tax code automatically determined by the
system.

System Response

The process will be blocked.

How to fix this error?

You have either to:
- Inform the reason why you want to change the tax code in field Manual
TC Reason;
OR
- Return the tax code value to the one automatically determined by the
system;

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 ITMF1001 - Impossible to change tax code; enter a reason for manual change ?

  The SAP error message ITMF1001, which states "Impossible to change tax code; enter a reason for manual change," typically occurs when a user attempts to change the tax code in a transaction where the system does not allow it due to certain restrictions or conditions. This error is often encountered in the context of financial documents, such as invoices or purchase orders, where tax codes are critical for proper accounting and compliance.
  Causes:
  
  Document Status: The document may be in a status that does not allow changes, such as being posted or completed.
  Configuration Settings: The system may be configured to restrict changes to tax codes after certain conditions are met (e.g., after posting).
  Tax Code Dependencies: The tax code may be linked to specific conditions or rules that prevent changes unless a valid reason is provided.
  Authorization Issues: The user may not have the necessary permissions to change the tax code in the document.
  
  Solutions:
  
  Provide a Reason: If the system allows, enter a valid reason for the manual change in the designated field. This may enable the change to be processed.
  Check Document Status: Ensure that the document is not in a status that prohibits changes. If it is posted, you may need to reverse or cancel the document before making changes.
  Review Configuration: Consult with your SAP administrator or functional consultant to review the configuration settings related to tax code changes. They may need to adjust settings if necessary.
  User Authorization: Verify that you have the appropriate permissions to make changes to tax codes. If not, contact your system administrator to request the necessary access.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on handling tax code changes in your version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in managing tax codes, such as FB60 (Enter Incoming Invoice) or ME21N (Create Purchase Order).
  SAP Notes: Check SAP Notes for any known issues or patches related to tax code changes.
  Training: Consider training sessions or resources on SAP financial processes to better understand how tax codes function within the system.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support or your internal IT team for further assistance.