How To Fix FL310 - Parameter & already defined

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 310

• Message text: Parameter & already defined

What causes this issue?

You used the same name for an export/import parameter and a table
parameter within a function module.

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?

Rename one of the parameters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL310 - Parameter & already defined ?

  The SAP error message FL310, which states "Parameter & already defined," typically occurs when there is an attempt to define a parameter in a configuration or customization setting that has already been defined in the system. This can happen in various contexts, such as during the configuration of financial parameters, controlling parameters, or other settings within the SAP system.
  Cause:
  
  Duplicate Definition: The most common cause is that the parameter you are trying to define has already been defined elsewhere in the system.
  Configuration Errors: There may be errors in the configuration settings where the same parameter is being referenced multiple times.
  Transport Issues: If you are transporting configuration settings from one environment to another (e.g., from development to production), there may be conflicts if the parameter already exists in the target environment.
  
  Solution:
  
  Check Existing Parameters: Review the existing parameters in the relevant configuration area to see if the parameter you are trying to define is already present. You can do this by navigating to the relevant configuration transaction (e.g., SPRO) and checking the settings.
  Remove or Modify Duplicates: If you find that the parameter is indeed already defined, you can either remove the duplicate entry or modify it as necessary to avoid the conflict.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific parameter and its intended use.
  Transport Management: If the issue arises during a transport, ensure that the transport request does not include parameters that are already defined in the target system. You may need to adjust the transport request accordingly.
  Debugging: If the error persists and you cannot find the duplicate, consider using debugging tools to trace where the parameter is being defined in the code or configuration.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), SE80 (Object Navigator), or SE11 (Data Dictionary) to help you navigate the configuration settings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions for specific scenarios.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to resolve the FL310 error and ensure that your parameters are correctly defined in the SAP system.