How To Fix /SAPAPO/ATP456 - Invalid parameter values when calling function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 456

• Message text: Invalid parameter values when calling 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 /SAPAPO/ATP456 - Invalid parameter values when calling function module &1 ?

  The SAP error message /SAPAPO/ATP456 Invalid parameter values when calling function module &1 typically occurs in the context of Advanced Planning and Optimization (APO) when there are issues with the parameters being passed to a function module. This error can arise due to various reasons, including incorrect data types, missing mandatory fields, or invalid values.
  Causes:
  
  Invalid Parameter Values: The parameters being passed to the function module do not meet the expected criteria (e.g., wrong data type, out of range values).
  Missing Mandatory Fields: Some required fields may not have been populated, leading to the function module being unable to execute properly.
  Configuration Issues: There may be issues with the configuration settings in APO that affect how the function module operates.
  Data Inconsistencies: Inconsistencies in master data or transaction data can lead to invalid parameter values.
  Custom Code: If there is custom code involved, it may not be handling the parameters correctly.
  
  Solutions:
  
  Check Parameter Values: Review the values being passed to the function module. Ensure that they are valid and conform to the expected data types and ranges.
  Review Documentation: Consult the SAP documentation for the specific function module to understand the required parameters and their expected values.
  Debugging: If you have access to the system, use the debugger to step through the code and identify where the invalid values are being set.
  Check Configuration: Verify the configuration settings in APO to ensure they are set up correctly and that there are no missing settings that could affect the function module.
  Data Validation: Perform data validation checks on the relevant master and transaction data to ensure there are no inconsistencies.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error message.
  
  Related Information:
  
  Function Module Documentation: Look up the specific function module mentioned in the error message to understand its parameters and expected input.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.