How To Fix DMU421 - Node type &1 does not belong to the level of the view nodes

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 421

• Message text: Node type &1 does not belong to the level of the view nodes

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU421 - Node type &1 does not belong to the level of the view nodes ?

  The SAP error message DMU421 indicates that there is a mismatch between the node type being processed and the expected node type for the level of the view nodes in a Data Migration Workbench (DMW) or Data Migration Utility (DMU) context. This error typically arises during data migration activities when the structure of the data being processed does not align with the defined structure of the target data model.
  Cause:
  
  Node Type Mismatch: The node type specified in the data does not correspond to the expected node type for the current level of the view nodes. This can happen if the data structure has been altered or if the wrong data is being imported.
  Incorrect Configuration: The configuration of the data model or the migration template may not match the actual data being processed.
  Hierarchy Issues: If the data is hierarchical, there may be issues with the hierarchy levels, where a node is being placed at a level where it is not allowed.
  
  Solution:
  
  Check Data Structure: Review the data structure you are trying to import. Ensure that the node types and levels match the expected structure defined in the target data model.
  Validate Configuration: Ensure that the configuration of the migration template or data model is correct and aligns with the data being processed.
  Adjust Node Types: If necessary, adjust the node types in your data to match the expected types for the levels in the view nodes.
  Review Hierarchy: If your data is hierarchical, ensure that the hierarchy is correctly defined and that nodes are placed at the appropriate levels.
  Consult Documentation: Refer to SAP documentation or guides related to the Data Migration Workbench or Data Migration Utility for specific details on node types and levels.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Workbench Documentation: Review the official SAP documentation for the Data Migration Workbench or Data Migration Utility for best practices and guidelines.
  Community Forums: Consider searching or posting in SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the DMU421 error and implement a solution to resolve it.