How To Fix MPE_OAN201 - Unknown parameter name &1 for action handler &2.

MPE_OAN201 - Overview

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 201

• Message text: Unknown parameter name &1 for action handler &2.

Self-Explanatory Message

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MPE_OAN201 - Details

• The SAP error message MPE_OAN201 indicates that there is an issue with an unknown parameter name being used in conjunction with a specific action handler. This error typically arises in the context of SAP's Multi-Processing Environment (MPE) or when dealing with action handlers in various SAP applications.
  
  Cause:
  
  Incorrect Parameter Name: The parameter name specified in the action handler is not recognized by the system. This could be due to a typo or using a parameter that is not defined in the action handler's configuration.
  
  Configuration Issues: The action handler may not be properly configured, leading to the system not recognizing the parameters being passed.
  Version Mismatch: If there are discrepancies between the versions of the components being used, certain parameters may not be available or recognized.
  Custom Development: If there are custom developments or enhancements, they may not be correctly implemented, leading to this error.
  
  
  Solution:
  
  Check Parameter Names: Review the parameter names being used in