How To Fix WRF_MASS_MATERIAL019 - Maximum node number - &1 - for hierarchy tree reached

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_MASS_MATERIAL - Integrated Mass Change

• Message number: 019

• Message text: Maximum node number - &1 - for hierarchy tree reached

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 WRF_MASS_MATERIAL019 - Maximum node number - &1 - for hierarchy tree reached ?

  The SAP error message WRF_MASS_MATERIAL019 indicates that the maximum node number for a hierarchy tree has been reached. This typically occurs in the context of material master data management, particularly when dealing with classification hierarchies or other hierarchical structures in SAP.
  Cause:
  The error is triggered when the system attempts to create or modify a hierarchy that exceeds the predefined limit of nodes (or levels) allowed in a hierarchy tree. This limit is set to ensure system performance and manageability. The specific number of maximum nodes can vary based on system configuration and version.
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review Hierarchy Structure: Check the hierarchy structure you are trying to create or modify. Ensure that it does not exceed the maximum allowed nodes. You may need to simplify the hierarchy or break it down into smaller parts.
  
  
  Check Configuration Settings: Consult with your SAP Basis or technical team to review the configuration settings related to hierarchy limits. If necessary, they may be able to adjust the maximum node limit, but this should be done with caution as it can impact system performance.
  
  
  Data Cleanup: If there are obsolete or unnecessary nodes in the hierarchy, consider cleaning them up to free up space for new entries.
  
  
  Use Alternative Structures: If the hierarchy is too complex, consider using alternative structures or methods to categorize your materials. This could involve using different classification methods or breaking down the data into multiple hierarchies.
  
  
  SAP Notes and Support: Check for any relevant SAP Notes that may address this issue. Sometimes, SAP releases patches or updates that can help resolve specific errors. You can search the SAP Support Portal for notes related to WRF_MASS_MATERIAL019.
  
  
  Testing: After making changes, test the hierarchy creation or modification process in a development or quality assurance environment before applying changes to the production system.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for material management and hierarchy management for more detailed information on limits and best practices.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and CL01 (Create Class) that may be involved in managing material hierarchies.
  
  By following these steps, you should be able to address the error and manage your material hierarchies more effectively.