How To Fix DMEE_ABA327 - Error aggregating node &1: node &2 has incorrect data type

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 327

• Message text: Error aggregating node &1: node &2 has incorrect data type

What causes this issue?

In the aggregation data for node &V1&, a reference to node &V2& is
stored by means of reference ID &V3&. This node is to be summed, but
node &V2& has an incorrect data type.
If you wish to aggregate by summing different nodes, note the following
rules:
You cannot sum nodes if they have the type "Character".
You can only sum different nodes if they have the same type.
The data type of the nodes being summed must correspond to that of the
target 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?

Change either the type of aggregation or the data type for node &V2&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMEE_ABA327 - Error aggregating node &1: node &2 has incorrect data type ?

  The SAP error message DMEE_ABA327 indicates an issue with the Data Medium Exchange (DMEE) configuration, specifically related to the aggregation of nodes in the DMEE tree structure. This error occurs when there is a mismatch in the expected data type for a node during the aggregation process.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Data Type Configuration: The node that is being aggregated has a data type that does not match the expected data type for the aggregation operation. For example, trying to aggregate a string node with a numeric node.
  Node Hierarchy Issues: The structure of the DMEE tree may not be correctly defined, leading to inconsistencies in how nodes are expected to interact.
  Missing or Incorrect Mapping: If the mapping of fields in the DMEE configuration is incorrect or incomplete, it can lead to data type mismatches.
  
  Solution:
  To resolve the DMEE_ABA327 error, you can follow these steps:
  
  
  Check Node Data Types:
  
  Review the data types defined for the nodes involved in the aggregation. Ensure that they are compatible. For example, if you are aggregating numeric values, all nodes should be defined as numeric.
  
  
  
  Review DMEE Configuration:
  
  Open the DMEE tree structure in the DMEE transaction (usually transaction code DMEE).
  Verify the configuration of the nodes, especially the aggregation nodes. Ensure that the hierarchy is correctly set up and that the nodes are properly defined.
  
  
  
  Adjust Aggregation Settings:
  
  If you are using aggregation functions (like SUM, COUNT, etc.), ensure that the nodes being aggregated are of the same data type. If necessary, modify the data type of the nodes to ensure compatibility.
  
  
  
  Test the Configuration:
  
  After making changes, test the DMEE configuration to see if the error persists. You can do this by generating the output file or running a test scenario that triggers the DMEE process.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct data types or configurations, refer to the SAP documentation for DMEE or consult with your SAP support team for guidance.
  
  
  
  Related Information:
  
  Transaction Codes: DMEE (Data Medium Exchange) is the primary transaction for managing DMEE configurations.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on DMEE configurations.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to identify and resolve the cause of the DMEE_ABA327 error in your SAP system.