How To Fix UJJ_EXCEPTION128 - The additional header &1 is invalid because of invalid characters.

SAP Error Message - Details

• Message type: E = Error

• Message class: UJJ_EXCEPTION - BPC: Message Class for UJJ Exception

• Message number: 128

• Message text: The additional header &1 is invalid because of invalid characters.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJJ_EXCEPTION128 - The additional header &1 is invalid because of invalid characters. ?

  The SAP error message UJJ_EXCEPTION128 indicates that there is an issue with the additional header in a document or transaction due to the presence of invalid characters. This error typically arises when data being processed contains characters that are not allowed or expected in the specific field or context.
  Cause:
  
  Invalid Characters: The additional header may contain special characters, control characters, or other non-printable characters that are not permitted.
  Data Format Issues: The data being inputted may not conform to the expected format, such as incorrect encoding or unexpected delimiters.
  Configuration Issues: There may be settings in the SAP system that define what constitutes valid characters for certain fields, and the input does not comply with these settings.
  
  Solution:
  
  Check Input Data: Review the data being entered in the additional header. Ensure that it only contains valid characters (typically alphanumeric characters, spaces, and certain punctuation marks).
  Data Cleansing: If the data is being imported or transferred from another system, ensure that it is cleansed of any invalid characters before it reaches SAP.
  Use Transaction Codes: If applicable, use transaction codes like SE11 (Data Dictionary) or SE37 (Function Builder) to check the data types and field definitions for the additional header.
  Debugging: If you have access to debugging tools, you can trace the process to identify where the invalid characters are being introduced.
  Consult Documentation: Refer to SAP documentation or help files for the specific module you are working with to understand the valid character set for the additional header.
  Contact SAP Support: If the issue persists and you cannot identify the invalid characters, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on handling invalid characters.
  Field Definitions: Review the field definitions in the Data Dictionary (SE11) to understand the constraints and valid character sets for the additional header.
  User Exits or BAdIs: If you are using custom code or enhancements, check if there are any user exits or BAdIs that might be affecting the data processing.
  
  By following these steps, you should be able to identify and resolve the issue causing the UJJ_EXCEPTION128 error in your SAP system.