How To Fix ECN800 - Internal error: parameter &1 was not supplied in FM &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ECN - Message class for IS-U navigator customizing

• Message number: 800

• Message text: Internal error: parameter &1 was not supplied in FM &2

What causes this issue?

Internal programming error:
A function module parameter was not supplied with data.

System Response

The system cannot continue processing.

How to fix this error?

Note the following:
The name of the function module
The transaction
The entries that led to this error
Send a problem message containing these specifications to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ECN800 - Internal error: parameter &1 was not supplied in FM &2 ?

  The SAP error message ECN800, which states "Internal error: parameter &1 was not supplied in FM &2," typically indicates that a required parameter was not provided to a function module (FM) that was called within the SAP system. This can occur due to various reasons, such as incorrect configuration, programming errors, or issues with the data being processed.
  Causes:
  
  Missing Parameter: The function module being called expects a certain parameter that was not supplied in the call.
  Incorrect Function Module Call: The function module may be called incorrectly in the ABAP code, leading to missing parameters.
  Data Issues: The data being processed may not meet the expected criteria, resulting in parameters not being populated.
  Custom Development: If there are custom developments or enhancements, they may not be handling parameters correctly.
  System Configuration: Configuration settings in the system may not be set up properly, leading to missing parameters.
  
  Solutions:
  
  Check Function Module Documentation: Review the documentation for the function module mentioned in the error message to understand the required parameters and their expected values.
  Debugging: Use the ABAP debugger to trace the execution of the program and identify where the parameter is missing. Check the call to the function module and ensure all required parameters are being passed.
  Review Custom Code: If the error occurs in custom code, review the logic to ensure that all necessary parameters are being populated and passed correctly.
  Check Data: Validate the data being processed to ensure it meets the requirements of the function module. Ensure that any necessary data is being retrieved and passed correctly.
  Consult SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Function Module (FM): A function module in SAP is a reusable piece of code that can be called from other programs or function modules. Each FM has a defined interface that specifies the parameters it requires.
  ABAP Debugger: A tool in SAP that allows developers to step through ABAP code to analyze and troubleshoot issues.
  SAP Notes: Documentation provided by SAP that includes fixes, enhancements, and guidance for various issues encountered in the SAP system.
  
  By following these steps, you should be able to identify the cause of the ECN800 error and implement a solution to resolve it.