How To Fix DMEE302 - Error in node &1: reference to node with ref. ID &2 cannot be used

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 302

• Message text: Error in node &1: reference to node with ref. ID &2 cannot be used

What causes this issue?

You have selected reference to another node as the mapping procedure.
However, the reference ID you used as a source has either of following
issues:
It is not an existing reference ID.
It is defined for a node that is below the processed node in the tree.

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?

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 DMEE302 - Error in node &1: reference to node with ref. ID &2 cannot be used ?

  The SAP error message DMEE302 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. This error indicates that there is a problem with a reference to a node in the DMEE tree, specifically that the reference to a node with a given reference ID cannot be used in the current context.
  Cause:
  
  Invalid Node Reference: The node referenced by the ID specified in the error message may not exist or may not be valid in the current DMEE tree structure.
  Incorrect Configuration: The configuration of the DMEE tree may have been altered, leading to inconsistencies in node references.
  Hierarchy Issues: The node may be referenced in a way that is not allowed due to the hierarchical structure of the DMEE tree.
  Missing Nodes: The node that is being referenced might have been deleted or is not activated.
  
  Solution:
  
  Check Node Existence: Verify that the node with the reference ID specified in the error message exists in the DMEE tree. If it does not exist, you may need to create it or correct the reference.
  Review DMEE Configuration: Go through the DMEE tree configuration to ensure that all nodes are correctly defined and that there are no broken references.
  Correct Hierarchical Structure: Ensure that the node is being referenced correctly according to the hierarchical structure of the DMEE tree. If necessary, adjust the tree structure to accommodate the reference.
  Activate Nodes: If the node exists but is not activated, make sure to activate it in the DMEE configuration.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring DMEE trees and resolving common errors.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like DMEE to access the DMEE configuration and tree structure.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify and resolve the DMEE302 error in your SAP system.