How To Fix FINB_GN_RFC002 - Parameter value & is too long - system error

SAP Error Message - Details

• Message type: E = Error

• Message class: FINB_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 FINB_GN_RFC002 - Parameter value & is too long - system error ?

  The SAP error message FINB_GN_RFC002 with the description "Parameter value & is too long - system error" typically indicates that a parameter being passed to an RFC (Remote Function Call) is exceeding the maximum length allowed by the system. This can occur in various scenarios, such as when calling a function module or when data is being transferred between systems.
  Cause:
  
  Parameter Length Exceeded: The most common cause is that one of the parameters being sent in the RFC call has a value that exceeds the defined length in the function module or interface.
  Data Type Mismatch: If the data type of the parameter does not match the expected type in the receiving function module, it can lead to this error.
  Configuration Issues: Sometimes, configuration settings in the SAP system or in the RFC destination can lead to this error if they are not set up correctly.
  
  Solution:
  
  Check Parameter Length: Review the function module or RFC interface definition to determine the maximum length allowed for each parameter. Ensure that the values being passed do not exceed these limits.
  Truncate or Modify Data: If the data being sent is too long, consider truncating it or modifying it to fit within the allowed length. This may involve changing the way data is formatted or structured before sending it.
  Debugging: Use transaction codes like SE37 (for function modules) or SE80 (for object navigator) to analyze the function module being called. You can also use transaction SM37 to check for any background jobs that may have failed due to this error.
  Check Data Types: Ensure that the data types of the parameters being passed match the expected types in the function module. If there is a mismatch, correct it in the calling program or interface.
  Review RFC Destination Settings: If the error occurs during communication between different SAP systems, check the RFC destination settings to ensure they are configured correctly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message or the function module in the SAP Support Portal.
  Documentation: Review the documentation for the specific function module or RFC interface to understand the expected input parameters and their constraints.
  Testing: If possible, create a test case with smaller parameter values to see if the error persists. This can help isolate the issue.
  
  If the problem continues after trying the above solutions, consider reaching out to your SAP Basis or development team for further assistance, as they may have more insights into the specific configuration and setup of your SAP environment.