How To Fix CNV_PE_IF018 - Parameter with name &1 already exists in the interface

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_IF - Messages for interface and interface mapping handling

• Message number: 018

• Message text: Parameter with name &1 already exists in the interface

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_IF018 - Parameter with name &1 already exists in the interface ?

  The SAP error message CNV_PE_IF018, which states "Parameter with name &1 already exists in the interface," typically occurs during the execution of a data migration or conversion process, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that there is a conflict with parameter names in the interface definition, where a parameter with the same name has already been defined.
  Cause:
  
  Duplicate Parameter Names: The most common cause of this error is that the same parameter name is being defined multiple times in the interface configuration. This can happen if the interface is being modified or if there are multiple versions of the same interface.
  Incorrect Configuration: There may be an issue with the configuration of the data migration project, where parameters are not being uniquely identified.
  Data Model Changes: Changes in the underlying data model or structure may lead to conflicts in parameter definitions.
  
  Solution:
  
  Check Parameter Definitions: Review the interface configuration to identify any duplicate parameter names. Ensure that each parameter has a unique name.
  Modify Parameter Names: If duplicates are found, modify the parameter names to ensure they are unique. This may involve renaming parameters or removing unnecessary duplicates.
  Review Interface Changes: If the interface has been modified recently, check the changes to ensure that no unintended duplicates were introduced.
  Consult Documentation: Refer to the SAP documentation for the specific data migration tool you are using to understand the expected structure and naming conventions for parameters.
  Testing: After making changes, test the interface again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for interface configuration.
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP Data Services, SLT) and their configuration requirements.
  Community Forums: Consider searching or posting in SAP community forums or support channels for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNV_PE_IF018 error and successfully proceed with your data migration or conversion process.