How To Fix TPDA426 - Identically-named interface parameters are not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 426

• Message text: Identically-named interface parameters are not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TPDA426 - Identically-named interface parameters are not supported ?

  The SAP error message TPDA426 indicates that there are identically-named interface parameters in a method or function module, which is not supported in SAP. This error typically arises when you are trying to define or use a method or function that has multiple parameters with the same name, which can lead to ambiguity in the code.
  Cause:
  
  Duplicate Parameter Names: The primary cause of this error is the presence of two or more parameters in the same interface (method or function module) that share the same name.
  Inconsistent Naming: This can happen if the developer inadvertently uses the same name for different parameters while defining the interface.
  
  Solution:
  To resolve the TPDA426 error, you need to ensure that all parameters in the interface have unique names. Here are the steps to fix the issue:
  
  Identify the Interface: Locate the method or function module that is causing the error.
  Check Parameter Names: Review the parameter list for duplicate names.
  Rename Parameters: Change the names of the duplicate parameters to ensure that each parameter has a unique identifier.
  Activate Changes: After making the necessary changes, activate the method or function module to apply the updates.
  
  Related Information:
  
  Best Practices: When designing interfaces, always use descriptive and unique names for parameters to avoid confusion and potential errors.
  Documentation: Refer to SAP documentation or the ABAP programming guidelines for more information on naming conventions and interface design.
  Testing: After resolving the issue, thoroughly test the method or function module to ensure that it behaves as expected and that the changes do not introduce new issues.
  
  By following these steps, you should be able to resolve the TPDA426 error and ensure that your SAP application functions correctly.