How To Fix MPE_OAN197 - Use either 'X' or ' ' as value for the boolean parameter &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 197

• Message text: Use either 'X' or ' ' as value for the boolean parameter &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 MPE_OAN197 - Use either 'X' or ' ' as value for the boolean parameter &1 ?

  The SAP error message MPE_OAN197 indicates that there is an issue with a boolean parameter in your SAP system. This error typically arises when a function or method is expecting a boolean value but receives an invalid input. The message suggests that the parameter should only accept 'X' (for true) or a blank space (for false).
  Cause:
  
  Invalid Input: The parameter in question is being passed a value that is neither 'X' nor a blank space. This could be due to a programming error, incorrect configuration, or user input.
  Data Type Mismatch: The system might be expecting a boolean value but is receiving a different data type (e.g., a string or number).
  Custom Code: If there is custom ABAP code involved, it may not be handling the parameter correctly.
  
  Solution:
  
  Check Input Values: Review the code or configuration where the parameter is being set. Ensure that it is only being assigned 'X' or a blank space.
  Debugging: If you have access to the ABAP debugger, you can set a breakpoint at the point where the parameter is being assigned to see what value is being passed.
  Review Custom Code: If the error is occurring in custom ABAP code, review the logic to ensure that it correctly handles the boolean parameter.
  Consult Documentation: Check the documentation for the function or method that is generating the error to understand the expected input values.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error message or provide patches.
  
  Related Information:
  
  Boolean Parameters: In SAP, boolean parameters are often used in function modules, methods, and reports to control the flow of logic. They typically accept 'X' for true and a blank space for false.
  Error Handling: Implement error handling in your code to catch such issues early and provide meaningful messages to users.
  Testing: After making changes, thoroughly test the affected functionality to ensure that the error is resolved and that no new issues have been introduced.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.