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

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• 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 Web Service based on a function module or BAPI.
  When creating or modifying the Web Service interface or proxy.
  When importing or generating proxies from WSDL where parameter names clash.
  During the mapping of function module parameters to Web Service parameters.
  
  
  Solution / How to fix:
  
  
  Check the parameter mapped names:
  
  Go to the function module or Web Service interface.
  Check the parameter names and their mapped names.
  Ensure that each parameter has a unique mapped name.
  
  
  
  Adjust the mapped names:
  
  In transaction SE37 (Function Builder), check the parameter names.
  In the Web Service tool (e.g., SOAMANAGER or SE80 Web Service generation), check the parameter mapping.
  Change the mapped names so that no two parameters share the same mapped name.
  
  
  
  Regenerate the Web Service:
  
  After correcting the mapped names, regenerate or reactivate the Web Service.
  This should resolve the uniqueness conflict.
  
  
  
  Check for naming conventions:
  
  Sometimes, the system automatically generates mapped names based on parameter names.
  If parameters have similar or identical names (e.g., in structures or tables), rename them or adjust the mapping manually.
  
  
  
  Check for structures or nested parameters:
  
  If the function module uses complex structures or tables, ensure that the mapped names inside these structures are unique as well.
  
  
  
  
  Additional Information:
  
  This error is related to the Web Service runtime and interface generation.
  It is important for the WSDL to have unique parameter names to comply with XML schema standards.
  The error message placeholders:
  
  &1 = Mapped name causing the conflict
  &2 = Parameter type (e.g., IMPORT, EXPORT, TABLES)
  &3 = Parameter name in the function module
  &4 = Function module name
  
  
  
  
  Example:
  If you have a function module Z_MY_FUNCTION with parameters:
  
  
  
  Parameter Type
  Parameter Name
  Mapped Name (Web Service)
  
  
  
  
  IMPORT
  IV_NAME
  NAME
  
  
  EXPORT
  EV_NAME
  NAME
  
  
  
  Both parameters have the mapped name NAME, which is not allowed. You need to rename one mapped name, e.g., IV_NAME mapped as INPUT_NAME and EV_NAME mapped as OUTPUT_NAME.
  
  If you need further help, please provide the function module name and parameter details, and I can assist with specific suggestions.
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Duplicate mapped names for parameters in a function module used in Web Service generation.
  
  
  Solution
  Ensure all parameter mapped names are unique; adjust mappings and regenerate the Web Service.
  
  
  Related Info
  Occurs during Web Service generation/activation; related to WSDL and XML schema compliance.
  
  
  
  
  Let me know if you want me to guide you through the steps in your SAP system!