How To Fix DMU104 - Node type &1 of node &2 allows no alternative segments of type &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 104

• Message text: Node type &1 of node &2 allows no alternative segments of type &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU104 - Node type &1 of node &2 allows no alternative segments of type &3 ?

  The SAP error message DMU104 indicates that there is an issue with the data model in the context of the Data Migration Workbench (DMW) or Data Migration Utility (DMU). Specifically, it suggests that a certain node type in a data structure does not permit alternative segments of a specified type. 
  Cause:
  
  Data Model Configuration: The error typically arises when the data model is incorrectly configured. The node type specified does not allow for the alternative segment type that you are trying to use.
  Hierarchy Issues: There may be a hierarchy or structural issue in the data model where the node type is not designed to accommodate the alternative segment.
  Incorrect Mapping: The mapping of data from the source to the target may be incorrect, leading to an attempt to use an unsupported segment type.
  
  Solution:
  
  Review Data Model: Check the configuration of the data model to ensure that the node type and its allowed segments are correctly defined. You may need to consult the data model documentation or configuration settings.
  Adjust Mapping: If you are mapping data from a source to a target, ensure that the mapping aligns with the allowed segments for the node type. You may need to modify the mapping to use a compatible segment type.
  Consult SAP Documentation: Look for specific guidelines in the SAP documentation related to the Data Migration Workbench or Data Migration Utility. This may provide insights into the allowed configurations and segment types.
  Testing: After making adjustments, test the data migration process again to ensure that the error does not recur.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on the data model configurations.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Training and Documentation: If you are frequently working with data migration, consider additional training or reviewing documentation on best practices for configuring data models in SAP.
  
  By following these steps, you should be able to identify the root cause of the DMU104 error and implement a solution to resolve it.