How To Fix MPN12001 - Error in interface parameter I_Funktion on calling function module

MPN12001 - Overview

• Message type: E = Error

• Message class: MPN12 - Message Class: Exchange in Quotation

• Message number: 001

• Message text: Error in interface parameter I_Funktion on calling function module

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 MPN12001 - Error in interface parameter I_Funktion on calling function module ?

  The SAP error message MPN12001, which indicates "Error in interface parameter I_Funktion on calling function module," typically arises when there is an issue with the parameters being passed to a function module in SAP. This can occur due to various reasons, such as incorrect data types, missing required parameters, or issues with the function module itself.
  Causes:
  
  Incorrect Parameter Values: The values being passed to the function module may not match the expected data types or formats.
  Missing Parameters: Required parameters may not be provided when calling the function module.
  Function Module Issues: The function module itself may have bugs or may not be properly configured.
  Authorization Issues: The user may not have the necessary authorizations to execute the function module.
  Data Consistency Issues: The data being processed may not be consistent or valid, leading to errors when the function module is executed.
  
  Solutions:
  
  Check Parameter Values: Review the values being passed to the function module. Ensure that