How To Fix MDG_GN_RFC002 - Parameter value & is too long - system error

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_GN_RFC - Messages from the Generator API

• Message number: 002

• Message text: Parameter value & is too long - system error

What causes this issue?

Parameter values cannot exceed &V2& spaces.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_GN_RFC002 - Parameter value & is too long - system error ?

  The SAP error message MDG_GN_RFC002 with the description "Parameter value & is too long - system error" typically occurs in the context of Master Data Governance (MDG) when a parameter being passed to a function or method exceeds the allowed length defined in the system.
  Cause:
  
  Parameter Length Exceeded: The most common cause of this error is that a parameter being sent to an RFC (Remote Function Call) or a method exceeds the maximum length defined for that parameter in the SAP system.
  Data Mapping Issues: If there is a mismatch in the data mapping between the source and target systems, it can lead to longer-than-expected values being sent.
  Configuration Issues: Incorrect configuration in the MDG settings or in the data model can also lead to this error.
  
  Solution:
  
  Check Parameter Lengths: Review the parameters being passed in the RFC call. Ensure that the values do not exceed the maximum length defined in the data dictionary (DDIC) for those parameters.
  Data Validation: Implement data validation checks before sending data to ensure that all values conform to the expected lengths.
  Adjust Data Mapping: If the error is due to data mapping, adjust the mapping to ensure that the values being sent are within the acceptable limits.
  Review Configuration: Check the configuration settings in MDG to ensure that they are set up correctly and that there are no discrepancies in the data model.
  Debugging: If the issue persists, consider debugging the RFC call to identify the exact parameter causing the issue and its value at runtime.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling it.
  Transaction Codes: Use transaction codes like SE37 (Function Module), SE80 (Object Navigator), or SE11 (Data Dictionary) to investigate the function modules and data structures involved.
  MDG Documentation: Refer to the official SAP MDG documentation for best practices on data governance and parameter handling.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.