How To Fix WRF_REF409 - No or false input data for function module &1!

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 409

• Message text: No or false input data for function module &1!

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF409 - No or false input data for function module &1! ?

  The SAP error message WRF_REF409 indicates that there is no or incorrect input data being passed to a function module. This error typically occurs in the context of SAP's Retail or Logistics modules, particularly when dealing with master data or reference data.
  Cause:
  
  Missing Data: The function module is expecting certain input parameters that are not being provided.
  Incorrect Data: The data being passed does not meet the expected format or criteria, leading to the function module being unable to process it.
  Configuration Issues: There may be configuration settings in the system that are not set up correctly, leading to the function module not receiving the necessary data.
  Data Consistency Issues: There may be inconsistencies in the data that are causing the function module to fail.
  
  Solution:
  
  Check Input Parameters: Review the input parameters being passed to the function module. Ensure that all required fields are populated and that the data is in the correct format.
  Debugging: Use the SAP debugger to step through the code and identify where the input data is being set. This can help pinpoint the source of the issue.
  Review Configuration: Check the configuration settings related to the function module and ensure that they are set up correctly.
  Data Validation: Validate the data being used in the transaction to ensure that it is consistent and meets the required criteria.
  Consult Documentation: Refer to the SAP documentation for the specific function module to understand its requirements and expected input data.
  Check for Notes: Look for SAP Notes related to the error message or the function module in question. There may be known issues or patches available.
  
  Related Information:
  
  Function Module Documentation: Review the documentation for the specific function module referenced in the error message to understand its input requirements.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: If applicable, check the transaction codes related to the function module to see if there are any specific transactions that can help in troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting business operations.
  
  By following these steps, you should be able to identify the cause of the WRF_REF409 error and implement a solution to resolve it.