How To Fix AH648 - FM &1: do not enter parameters &2 and &3 simultaneously

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 648

• Message text: FM &1: do not enter parameters &2 and &3 simultaneously

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AH648 - FM &1: do not enter parameters &2 and &3 simultaneously ?

  The SAP error message AH648 indicates that there is a conflict in the parameters being passed to a function module (FM). Specifically, it states that you should not enter parameters &2 and &3 simultaneously. This typically occurs when two parameters that are mutually exclusive are being filled at the same time, which is not allowed by the function module's logic.
  Cause:
  The error is caused by the following:
  
  The function module you are trying to call has specific rules regarding its parameters. It expects either one parameter or the other, but not both.
  The parameters in question (&2 and &3) are likely designed to provide alternative inputs for the function's processing logic.
  
  Solution:
  To resolve this error, you should:
  
  Review the Function Module Documentation: Check the documentation for the specific function module you are using to understand the purpose of the parameters and their expected usage.
  Modify Your Code: Ensure that you are only passing one of the conflicting parameters at a time. You can implement a conditional check in your code to determine which parameter should be used based on your business logic.
  Test the Changes: After making the necessary adjustments, test the function call to ensure that the error no longer occurs and that the desired functionality is achieved.
  
  Related Information:
  
  Function Module Name: Identify the specific function module (FM) that is generating the error. This will help you find the relevant documentation and understand the parameters involved.
  Parameter Definitions: Look into the definitions of parameters &2 and &3 to understand their roles and why they cannot be used together.
  SAP Notes: Check for any SAP Notes related to the function module for additional guidance or known issues.
  Debugging: If you are unsure which part of your code is causing the issue, consider using the SAP debugger to step through the code and observe the values being passed to the function module.
  
  By following these steps, you should be able to resolve the AH648 error and ensure that your function module calls are correctly configured.