How To Fix FF102 - This tax code is not permitted (it contains special characters)

FF102 - Overview

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 102

• Message text: This tax code is not permitted (it contains special characters)

What causes this issue?

The selected tax code is not permitted since it contains special
characters.

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?

Enter a new tax code that consists of letters and/or numbers only.

Error message extract from SAP system. Copyright SAP SE.

FF102 - Details

• The SAP error message FF102, which states "This tax code is not permitted (it contains special characters)," typically occurs when a tax code entered in a transaction contains invalid characters. This can happen in various SAP modules, particularly in financial transactions where tax codes are required.
  
  Cause:
  
  Special Characters: The tax code entered may contain special characters (e.g., symbols like @, #, $, %, etc.) that are not allowed in the tax code format.
  Incorrect Configuration: The tax code may not be properly configured in the system, or it may not exist in the tax code master data.
  User Input Error: The user may have mistakenly entered an incorrect tax code or included unintended characters while typing.
  
  
  Solution:
  
  Check Tax Code: Verify the tax code you are trying to use. Ensure it consists only of valid alphanumeric characters (letters and numbers) and does not include any special characters.
  Review Configuration: If you are an administrator, check the