How To Fix C0665 - Parameter & has been defined twice

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 665

• Message text: Parameter & has been defined twice

What causes this issue?

Parameter &V1& is contained twice in the function call.
INCLUDE 'NA_FU_NO' OBJECT DOKU ID TX LANGUAGE E

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

INCLUDE 'NA_HA_TST' OBJECT DOKU ID TX LANGUAGE E
RESET N1
INCLUDE 'NA_HA_POS' OBJECT DOKU ID TX LANGUAGE E
Correct the process instruction in the process order.
INCLUDE 'NA_STREZ_NEU' OBJECT DOKU ID TX LANGUAGE E
<DS:TRAN.COR2>Change process order</>
INCLUDE 'NA_HA_PROD' OBJECT DOKU ID TX LANGUAGE E
Errors in the process instruction cannot be corrected for the current
PI sheet.
INCLUDE 'NA_PLNREZ_HINW' OBJECT DOKU ID TX LANGUAGE E
<DS:TRAN.C202>Change master recipe</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C0665 - Parameter & has been defined twice ?

  The SAP error message C0665, which states "Parameter & has been defined twice," typically occurs during the development of ABAP programs or when defining parameters in function modules, methods, or other programmatic constructs. This error indicates that a parameter has been declared more than once, which is not allowed.
  Cause:
  
  Duplicate Parameter Declaration: The most common cause of this error is that a parameter has been defined multiple times within the same scope (e.g., in a function module, method, or report).
  Typographical Errors: Sometimes, a typographical error can lead to the same parameter name being used inadvertently.
  Inclusion of Multiple Includes: If multiple includes are used in a program, and the same parameter is defined in more than one include, it can lead to this error.
  
  Solution:
  
  Check Parameter Declarations: Review the code where the error occurs and check for any duplicate parameter declarations. Ensure that each parameter is defined only once.
  Rename Parameters: If you find that a parameter is defined multiple times, consider renaming one of the parameters to avoid the conflict.
  Review Includes: If your program uses includes, check each include file for duplicate parameter definitions. You may need to refactor the code to avoid conflicts.
  Use Unique Names: Adopt a naming convention that ensures parameter names are unique and descriptive, which can help prevent such issues in the future.
  
  Related Information:
  
  ABAP Development Guidelines: Following best practices in ABAP development can help avoid such errors. This includes using meaningful names and maintaining a clear structure in your code.
  Debugging Tools: Utilize the ABAP debugger or syntax check tools in the SAP environment to identify and resolve issues related to parameter definitions.
  Documentation: Refer to SAP documentation or community forums for additional insights and examples related to parameter handling in ABAP.
  
  By addressing the duplicate parameter definitions and following best practices, you should be able to resolve the C0665 error effectively.