How To Fix MPE_OAN110 - Element &1 in OAN &2, version &3 has an unknown element type

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 110

• Message text: Element &1 in OAN &2, version &3 has an unknown element type

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_OAN110 - Element &1 in OAN &2, version &3 has an unknown element type ?

  The SAP error message MPE_OAN110 indicates that there is an issue with an element in the Object Attribute Node (OAN) that is not recognized or has an unknown element type. This typically occurs in the context of SAP applications that utilize Object Attribute Nodes for managing data structures.
  Cause:
  
  Unknown Element Type: The element type specified in the OAN is not defined or recognized by the system. This could be due to a missing configuration or an incorrect reference.
  Version Mismatch: The version of the OAN being referenced may not match the expected version in the system, leading to discrepancies in element types.
  Data Model Changes: Changes in the underlying data model or structure that have not been properly updated in the OAN configuration can lead to this error.
  Transport Issues: If the OAN was transported from another system, there may be inconsistencies or missing elements that were not included in the transport.
  
  Solution:
  
  Check Configuration: Verify the configuration of the Object Attribute Node in the SAP system. Ensure that all element types are correctly defined and that the OAN is properly set up.
  Validate Version: Ensure that the version of the OAN being used is correct and matches the expected version in the system. If necessary, update the version or reconfigure the OAN.
  Review Data Model: If there have been recent changes to the data model, review those changes to ensure that they are reflected in the OAN configuration.
  Transport Review: If the OAN was transported, check the transport logs for any errors or missing elements. You may need to re-transport the OAN or manually adjust the configuration.
  Consult Documentation: Refer to SAP documentation or notes related to the specific OAN and element types to ensure compliance with best practices and guidelines.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect the OAN and its elements.
  Debugging: If necessary, enable debugging to trace the execution and identify where the error is occurring in the code.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the MPE_OAN110 error and implement an appropriate solution.