How To Fix MPE_OAN220 - Group header &1 in OAN &2, version &3 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 220

• Message text: Group header &1 in OAN &2, version &3 is unknown

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN220 - Group header &1 in OAN &2, version &3 is unknown ?

  The SAP error message MPE_OAN220 typically indicates that there is an issue with the group header in the context of the Object Assignment Number (OAN) in the system. This error can occur in various scenarios, particularly when dealing with master data or configuration settings related to object assignments.
  Cause:
  
  
  Unknown Group Header: The error suggests that the system is unable to recognize the specified group header for the given Object Assignment Number (OAN) and version. This could be due to:
  
  The group header not being defined in the system.
  The group header being deleted or not activated.
  A mismatch in the versioning of the group header.
  
  
  
  Data Inconsistency: There may be inconsistencies in the data, such as missing or incorrect entries in the relevant tables.
  
  
  Configuration Issues: The configuration settings related to the object assignment or group headers may not be set up correctly.
  
  
  Solution:
  
  
  Check Group Header Definition:
  
  Verify that the group header specified in the error message exists in the system. You can do this by checking the relevant configuration or master data tables.
  Ensure that the group header is active and properly defined.
  
  
  
  Review Object Assignment Number (OAN):
  
  Check the OAN and ensure that it is correctly linked to the group header. Look for any discrepancies in the assignment.
  
  
  
  Version Check:
  
  Confirm that the version specified in the error message is valid and corresponds to the existing group header. If necessary, update the version to a valid one.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the relevant data to identify any missing or incorrect entries. This may involve using transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to inspect the underlying tables.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific module you are working with. There may be specific guidelines or patches available for this error.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes that may help in troubleshooting, such as SE11, SE16, or specific transaction codes related to the module you are working with.
  SAP Notes: Search for SAP Notes related to MPE_OAN220 for any known issues or fixes.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.