How To Fix MSG_UH091 - Node &1 cannot be changed.

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_UH - Universal Hierarchy Message Class

• Message number: 091

• Message text: Node &1 cannot be changed.

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 MSG_UH091 - Node &1 cannot be changed. ?

  The SAP error message MSG_UH091 with the description "Node &1 cannot be changed" typically occurs in the context of hierarchical data structures, such as those used in SAP's classification system or in the context of master data management. This error indicates that the specific node (identified by &1) is in a state that does not allow for changes.
  Causes:
  
  Node Status: The node may be in a status that prohibits changes, such as being locked or in a finalized state.
  Hierarchy Level Restrictions: Certain nodes in a hierarchy may have restrictions that prevent modifications at specific levels.
  Authorization Issues: The user may not have the necessary permissions to make changes to the node.
  Data Integrity Constraints: The system may have integrity constraints that prevent changes to maintain data consistency.
  
  Solutions:
  
  Check Node Status: Verify the status of the node. If it is locked or finalized, you may need to unlock it or change its status before making modifications.
  Review Hierarchy Rules: Understand the rules governing the hierarchy. Some nodes may be designed to be immutable or may have specific conditions under which they can be changed.
  User Authorizations: Ensure that the user has the appropriate authorizations to modify the node. This may involve checking roles and permissions in the SAP system.
  Consult Documentation: Refer to the relevant SAP documentation or help resources for specific guidelines on modifying nodes in the context you are working with.
  Contact Support: If the issue persists and you cannot determine the cause, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using specific transaction codes related to hierarchy management, such as CT04 for class types or CVI for customer/vendor integration.
  SAP Notes: Search for SAP Notes related to MSG_UH091 for any patches or updates that may address this issue.
  System Logs: Check system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.