How To Fix DMEE126 - Node &1 cannot be inserted here

DMEE126 - Overview

• Message type: E = Error

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

• Message number: 126

• Message text: Node &1 cannot be inserted here

What causes this issue?

Certain restrictions apply to relationships between nodes in DMEE
format trees. For instance, a segment cannot be inserted as a subnode
of an element.

System Response

The node cannot be inserted.

How to fix this error?

Note the following rules when you insert nodes:
Action nodes:
An action node cannot have any subnodes.
A level that contains an action node can only contain other action
nodes - no other types of nodes.
You can only create an action node as a subnode of elements.
An element or a technical node cannot have a segment as the next node
on the same level.
A check segment can only contain technical nodes as subnodes.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

DMEE126 - Details

• The SAP error message DMEE126, which states "Node &1 cannot be inserted here," typically occurs in the context of the Data Medium Exchange Engine (DMEE) when you are trying to create or modify a DMEE tree structure for electronic payment formats or other data export formats.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  Incorrect Node Hierarchy: You are trying to insert a node in a position where it is not allowed according to the DMEE structure rules. Each node has specific parent-child relationships that must be adhered to.
  Node Type Restrictions: Certain nodes can only be inserted in specific locations based on their type (e.g., header, item, footer).
  
  Configuration Issues: There may be issues with the configuration of the DMEE tree or the specific format you are working with.
  
  
  Solution:
  To resolve the DMEE126 error, you can take the following steps:
  
  
  Check Node Hierarchy: Review the DMEE tree structure to ensure that you