How To Fix /SCF/CL_QP_MESSAGES006 - Selection parameter '&1' can only be used once

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCF/CL_QP_MESSAGES -

• Message number: 006

• Message text: Selection parameter '&1' can only be used once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCF/CL_QP_MESSAGES006 - Selection parameter '&1' can only be used once ?

  The SAP error message /SCF/CL_QP_MESSAGES006 Selection parameter '&1' can only be used once typically occurs in the context of SAP applications that involve query parameters or selection criteria, particularly in the SAP Convergent Charging (SAP CC) or similar modules. This error indicates that a specific selection parameter has been defined multiple times in a query or selection screen, which is not allowed.
  Cause:
  The primary cause of this error is that the same selection parameter (e.g., a field or variable) has been included more than once in the selection criteria of a report or transaction. This can happen due to:
  
  Duplicate Entries: The user or developer may have inadvertently added the same parameter multiple times in the selection screen configuration.
  Program Logic: The logic in the program may be incorrectly set up to allow the same parameter to be processed multiple times.
  User Input: Users may be trying to filter data using the same field multiple times in a single execution.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Selection Screen Configuration:
  
  Review the selection screen configuration in the relevant report or transaction. Ensure that each selection parameter is defined only once.
  If you are using a custom report, check the ABAP code for the selection screen definition.
  
  
  
  Modify User Input:
  
  If the error arises from user input, instruct users to avoid entering the same parameter multiple times. You may also consider implementing validation logic to prevent this.
  
  
  
  Debugging:
  
  If you are a developer, use the debugger to trace the execution of the program and identify where the duplicate parameter is being introduced.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or help resources related to the specific module you are working with for any additional guidelines on selection parameters.
  
  
  
  Contact Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches or updates.
  Community Forums: Look for discussions in SAP community forums or platforms like SAP Community, where other users may have encountered and resolved similar issues.
  Training and Documentation: Ensure that users and developers are trained on the proper use of selection parameters in SAP to minimize the occurrence of such errors.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /SCF/CL_QP_MESSAGES006 Selection parameter '&1' can only be used once.