How To Fix MPE_OAN191 - Specify the name of the parameter for action handler &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 191

• Message text: Specify the name of the parameter for action handler &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_OAN191 - Specify the name of the parameter for action handler &1 ?

  The SAP error message MPE_OAN191, which states "Specify the name of the parameter for action handler &1," typically occurs in the context of SAP applications when there is an issue with the configuration of action handlers in the system. This error indicates that a required parameter name for a specific action handler has not been provided or is missing.
  Cause:
  
  Missing Parameter Name: The most common cause of this error is that the action handler is expecting a parameter name to be specified, but it has not been provided in the configuration.
  Incorrect Configuration: There may be an issue with the configuration of the action handler itself, such as incorrect settings or missing entries in the relevant customizing tables.
  Development Issues: If the action handler is custom-developed, there may be a bug or oversight in the code that fails to pass the required parameter.
  
  Solution:
  
  Check Configuration: Review the configuration settings for the action handler in the relevant customizing transaction. Ensure that all required parameters are specified correctly.
  Specify Parameter Name: If you are developing or customizing the action handler, ensure that you are passing the correct parameter name in the code. This may involve checking the method or function module that is being called.
  Debugging: If you have access to the development environment, you can debug the action handler to see where the parameter is expected and why it is not being provided.
  Consult Documentation: Refer to the SAP documentation or help files related to the specific action handler you are working with to understand the required parameters and their expected values.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to action handlers and their configuration, such as SE80 (Object Navigator) or SE37 (Function Module).
  Community Forums: Look for discussions in SAP community forums or platforms like SAP Community or Stack Overflow, where other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the MPE_OAN191 error message in your SAP system.