How To Fix MU064 - A system error has occurred in management of the hierarchy display

SAP Error Message - Details

• Message type: E = Error

• Message class: MU - Maintenance of structured materials

• Message number: 064

• Message text: A system error has occurred in management of the hierarchy display

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

In certain cases, you can continue to work, but no longer using the
hierarchy display. The system decides itself which is the case.

How to fix this error?

Please inform your system administrator.

Procedure for System Administrators

The command &V1& returned the error &V2&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MU064 - A system error has occurred in management of the hierarchy display ?

  The SAP error message MU064, which states "A system error has occurred in management of the hierarchy display," typically indicates an issue related to the display of hierarchical data in SAP, often in the context of material management or similar modules. This error can arise due to various reasons, including:
  Causes:
  
  Data Inconsistencies: There may be inconsistencies or corruption in the data related to the hierarchy being displayed.
  Authorization Issues: The user may not have the necessary authorizations to view certain data in the hierarchy.
  System Configuration: Incorrect configuration settings in the SAP system can lead to errors in displaying hierarchical data.
  Technical Issues: There may be underlying technical issues, such as problems with the database or application server.
  SAP Notes: There may be known issues that have been documented in SAP Notes, which could provide fixes or workarounds.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to access the hierarchy data.
  Data Consistency Check: Run consistency checks on the relevant data to identify and correct any inconsistencies.
  Review Configuration: Check the configuration settings related to the hierarchy display and ensure they are set up correctly.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal. Apply any recommended patches or updates that address this specific error.
  System Logs: Review system logs (transaction codes like SLG1) for more detailed error messages that can provide insights into the root cause.
  Technical Support: If the issue persists, 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:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE11 (Data Dictionary), SE80 (Object Navigator), and SLG1 (Application Log).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation related to the specific module you are working with, as it may provide additional insights into hierarchy management.
  
  By following these steps, you should be able to diagnose and potentially resolve the MU064 error in SAP.