How To Fix WS_TOOL239 - Mapped name &1 for parameter &2(&3) of function &4 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 239

• Message text: Mapped name &1 for parameter &2(&3) of function &4 is not unique

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 WS_TOOL239 - Mapped name &1 for parameter &2(&3) of function &4 is not unique ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WS_TOOL239 Mapped name &1 for parameter &2(&3) of function &4 is not unique
  
  Meaning / 
  Cause:
  This error occurs during the generation or activation of a Web Service or when working with function modules in the context of Web Service tools (such as SOAMANAGER, SE80 Web Service generation, or WS tools). The message indicates that the mapped name assigned to a parameter of a function module is not unique within the context of the Web Service or function interface.
  
  Mapped name: This is the name used in the Web Service interface or WSDL for a parameter.
  The system expects each parameter's mapped name to be unique to avoid ambiguity in the Web Service interface.
  If two or more parameters have the same mapped name, the system cannot generate a proper WSDL or proxy, leading to this error.
  
  
  When does it occur?
  
  When generating or activating a