How To Fix 50128 - Parameter error in step &1 process &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 50 - Messages in Package EEOB

• Message number: 128

• Message text: Parameter error in step &1 process &2

What causes this issue?

A parameter error occured in the dataflow of the front office process.

System Response

Check the Customizing settings for the front office.

How to fix this error?

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 50128 - Parameter error in step &1 process &2 ?

  The SAP error message 50128, which states "Parameter error in step &1 process &2," typically indicates that there is an issue with the parameters being passed to a specific process or step in a workflow or transaction. This error can occur in various contexts, such as during data processing, batch jobs, or when executing specific transactions.
  Causes:
  
  Incorrect Parameter Values: The parameters being passed to the process may not be valid or may not meet the expected criteria.
  Missing Parameters: Required parameters may be missing, leading to the inability of the process to execute correctly.
  Data Type Mismatch: The data types of the parameters may not match what the process expects.
  Configuration Issues: There may be configuration settings in the system that are not set up correctly, leading to parameter errors.
  Custom Code Issues: If there is custom code involved, there may be bugs or logical errors in the code that are causing the parameters to be incorrectly set.
  
  Solutions:
  
  Check Parameter Values: Review the parameters being passed to the process and ensure they are correct and valid.
  Review Documentation: Consult the SAP documentation for the specific process or transaction to understand the expected parameters and their formats.
  Debugging: If you have access to debugging tools, you can step through the process to identify where the parameter error is occurring.
  Check Configuration: Verify that all necessary configuration settings are correctly set up in the system.
  Consult with Developers: If custom code is involved, work with the development team to review the code for any potential issues.
  SAP Notes: Search for relevant SAP Notes or Knowledge Base Articles (KBAs) that may address this specific error message or provide guidance on similar issues.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may want to check specific transaction codes related to the process.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  System Logs: Review system logs (such as ST22 for dumps or SM21 for system logs) for additional context around the error.
  Support: If the issue persists and cannot be resolved internally, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.