How To Fix DMEE366 - Error in node &1: reference to node &3 not allowed due to aggregration

SAP Error Message - Details

• Message type: E = Error

• Message class: DMEE - Messages for Data Medium Exchange Engine

• Message number: 366

• Message text: Error in node &1: reference to node &3 not allowed due to aggregration

What causes this issue?

Node &V1& references node &V3& by means of reference ID &V2&. In the
hierarchical tree levels, node &V1& is located under &V3&. This
reference is not permitted, since node &V3& is either an aggregation
node or it references an aggregation node.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to reference an aggregation node, make sure that both the
node you are referencing <zh>from</> and <zh>to</> are located on the
same tree level.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMEE366 - Error in node &1: reference to node &3 not allowed due to aggregration ?

  The SAP error message DMEE366 typically occurs in the context of the Data Medium Exchange Engine (DMEE) when there is an issue with the configuration of the DMEE tree structure, particularly related to aggregation settings. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  The error message DMEE366 indicates that there is a problem with the way nodes are referenced in the DMEE tree. Specifically, it suggests that a node (referred to as &1) is trying to reference another node (referred to as &3) in a way that is not allowed due to aggregation rules. This usually happens when:
  
  Aggregation Settings: The node you are trying to reference is set up for aggregation, and the current node does not support referencing aggregated nodes.
  Incorrect Node Configuration: The configuration of the nodes in the DMEE tree may not be set up correctly, leading to invalid references.
  Hierarchy Issues: The structure of the DMEE tree may not align with the expected hierarchy, causing conflicts in how nodes can reference each other.
  
  Solution:
  To resolve the DMEE366 error, you can take the following steps:
  
  
  Check Node Configuration:
  
  Open the DMEE tree in transaction code DMEE.
  Review the configuration of the nodes involved in the error message. Ensure that the aggregation settings are correctly defined and that nodes are not incorrectly referencing each other.
  
  
  
  Adjust Aggregation Settings:
  
  If a node is set to aggregate data, ensure that it is only referencing nodes that are allowed to be aggregated. You may need to change the aggregation settings of the nodes involved.
  
  
  
  Review Hierarchy:
  
  Ensure that the hierarchy of the DMEE tree is correctly structured. Nodes should be organized in a way that respects the aggregation rules defined in the DMEE configuration.
  
  
  
  Test Changes:
  
  After making adjustments, test the DMEE tree to ensure that the error no longer occurs. You can do this by generating the output file or simulating the DMEE process.
  
  
  
  Consult Documentation:
  
  If you are unsure about the configuration, refer to SAP documentation or guides related to DMEE configuration for more detailed instructions on setting up nodes and aggregation.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration, consider reaching out to SAP support for further assistance. They may provide insights specific to your version or setup.
  
  
  
  Related Information:
  
  Transaction Codes: DMEE (for Data Medium Exchange Engine configuration).
  Documentation: SAP Help Portal and community forums can provide additional insights and examples of DMEE configurations.
  Best Practices: Regularly review and test your DMEE configurations, especially after updates or changes to your SAP system.
  
  By following these steps, you should be able to identify and resolve the DMEE366 error effectively.