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

DMU421 - Overview

• 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.

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 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