How To Fix WS_TOOL081 - Parameter &1 already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 081

• Message text: Parameter &1 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL081 - Parameter &1 already exists ?

  The SAP error message:
  WS_TOOL081 Parameter &1 already exists
  
  Meaning / 
  Cause:
  This error occurs when you try to create or add a parameter with a name that already exists in the current context (e.g., in a function module, report, or a tool where parameters are defined). The system prevents duplicate parameter names to avoid ambiguity and conflicts during runtime.
  In other words, the parameter name you are trying to use is already defined, so SAP does not allow you to create another parameter with the same name.
  
  When does it typically occur?
  
  When defining parameters in function modules (SE37).
  When creating or modifying reports or programs with parameters.
  When working with tools or interfaces that require parameter definitions.
  During transport or import if parameter definitions clash.
  
  
  
  Solution:
  
  
  Check existing parameters:
  
  Review the list of parameters already defined in the object (function module, report, etc.).
  Identify the parameter with the same name.
  
  
  
  Rename the new parameter:
  
  Use a unique name for the new parameter that