How To Fix EU056 - Internal error in tree control

SAP Error Message - Details

• Message type: E = Error

• Message class: EU - Development Environment

• Message number: 056

• Message text: Internal error in tree control

What causes this issue?

A severe internal error occurred using the tree control; the system is
unable to continue processing. This may only be a temporary error.

System Response

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

How to fix this error?

Restart the application. If the error occurs again, check whether the
current version of the tree control is installed on your PC and install
the newest version, if necessary.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EU056 - Internal error in tree control ?

  The SAP error message EU056, which indicates "Internal error in tree control," typically arises in the context of using tree structures in SAP applications, such as in the SAP GUI or specific modules that utilize tree controls for displaying hierarchical data.
  Cause:
  
  Data Corruption: The error may occur due to corrupted data in the tree structure or the underlying database.
  Software Bugs: There may be bugs in the SAP application or the specific version of the software you are using.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to this error.
  Memory Issues: Insufficient memory or resources allocated to the SAP GUI or application can also trigger this error.
  User Authorizations: Lack of proper authorizations to access certain nodes in the tree structure can lead to unexpected behavior.
  
  Solution:
  
  Restart the Application: Sometimes, simply restarting the SAP GUI or the application can resolve temporary glitches.
  Check for Updates: Ensure that you are using the latest version of the SAP GUI and that all relevant patches and updates have been applied.
  Clear Cache: Clear the SAP GUI cache to remove any potentially corrupted files.
  Review Data: Check the data being displayed in the tree control for any inconsistencies or corruption.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the data in the tree control.
  Contact SAP Support: If the issue persists, it may be necessary to contact SAP support for further assistance. Provide them with detailed information about the error, including the steps to reproduce it and any relevant logs.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. SAP Notes often contain fixes, workarounds, or additional troubleshooting steps.
  Transaction Codes: If the error occurs in a specific transaction, note the transaction code and check for known issues related to that transaction.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  User Forums: Consider checking SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to diagnose and potentially resolve the EU056 error in your SAP environment.