How To Fix MPE_OAN196 - Parameter action handler &1 does not match action handler definition &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 196

• Message text: Parameter action handler &1 does not match action handler definition &2

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN196 - Parameter action handler &1 does not match action handler definition &2 ?

  The SAP error message MPE_OAN196 indicates that there is a mismatch between the parameter action handler defined in the system and the expected action handler definition. This typically occurs in the context of SAP applications that utilize action handlers for processing certain operations, such as in the SAP Master Data Governance (MDG) or other SAP modules that involve workflow or data processing.
  Cause:
  The error can be caused by several factors, including:
  
  
  Configuration Issues: The action handler defined in the system does not match the expected configuration. This could be due to incorrect settings in the customizing or configuration tables.
  
  
  Version Mismatch: If there have been recent updates or changes to the system, the action handler definitions may not have been updated accordingly.
  
  
  Custom Development: If there are custom developments or enhancements in the system, they may not align with the standard action handler definitions.
  
  
  Data Integrity Issues: There may be inconsistencies in the data that the action handler is trying to process, leading to a failure in matching the expected parameters.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration: Review the configuration settings for the action handler in the relevant customizing transactions. Ensure that the parameters defined match the expected definitions.
  
  
  Review Action Handler Definitions: Compare the action handler definitions in the system with the expected definitions. This may involve checking the relevant tables or customizing settings.
  
  
  Update or Reconfigure: If there are discrepancies, update the action handler configuration or reconfigure it to match the expected definitions.
  
  
  Check for Updates: If the system has been recently updated, ensure that all components are compatible and that any necessary adjustments have been made to the action handlers.
  
  
  Debugging: If the issue persists, consider using debugging tools to trace the execution of the action handler and identify where the mismatch occurs.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific module or functionality you are working with for any known issues or additional guidance.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  Documentation: Review the official SAP documentation for the module you are working with, as it may contain specific guidelines for configuring action handlers.
  
  By following these steps, you should be able to identify and resolve the cause of the MPE_OAN196 error in your SAP system.