How To Fix TD428 - Parameter FUNCTION=& is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: TD - SAPscript: Text editor, composer, forms, styles and fonts

• Message number: 428

• Message text: Parameter FUNCTION=& is invalid

What causes this issue?

An invalid value was specified for the parameter FUNCTION.

System Response

The function was ignored.

How to fix this error?

Please enter a value which is valid for the parameter FUNCTION, such as
<H>SET</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TD428 - Parameter FUNCTION=& is invalid ?

  The SAP error message TD428, which states "Parameter FUNCTION=& is invalid," typically occurs in the context of transport management or when dealing with transport requests in SAP. This error indicates that the system is expecting a valid function name or parameter, but it has received an invalid or empty value instead.
  Causes:
  
  Incorrect Function Name: The function name specified in the transport request or configuration is incorrect or does not exist.
  Empty Parameter: The parameter FUNCTION is not set or is empty, leading to the error.
  Configuration Issues: There may be issues in the transport configuration or settings that are causing the system to not recognize the function.
  Custom Development: If there are custom programs or enhancements that manipulate transport requests, they may be incorrectly coded or not handling parameters properly.
  
  Solutions:
  
  Check Function Name: Verify that the function name specified in the transport request or configuration is correct and exists in the system.
  Set Parameter Correctly: Ensure that the FUNCTION parameter is set correctly in the transport request or any related configuration.
  Review Transport Configuration: Check the transport management configuration in transaction STMS to ensure everything is set up correctly.
  Debugging: If the error is occurring in a custom program, debug the program to identify where the parameter is being set and why it might be empty or invalid.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches or updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as STMS (Transport Management System) and SE01 (Transport Organizer) for managing transport requests.
  SAP Documentation: Refer to SAP's official documentation for transport management for more detailed information on how to configure and manage transport requests.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other SAP users.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.