How To Fix DMU111 - Node &1 already exists

DMU111 - Overview

• Message type: E = Error

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

• Message number: 111

• Message text: Node &1 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMU111 - Node &1 already exists ?

  The SAP error message DMU111, which states "Node &1 already exists," typically occurs in the context of Data Migration or Data Management processes, particularly when working with the Data Migration Workbench (DMW) or similar tools. This error indicates that there is an attempt to create a node (or entry) in a data structure that already exists, leading to a conflict.
  
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the system is trying to create a node (like a record or an object) that already exists in the database or in the current context.
  Incorrect Data Mapping: If the data being imported or migrated has been incorrectly mapped or contains duplicates, this can lead to the error.
  Data Integrity Issues: There may be issues with the integrity of the data being processed, such as missing keys or identifiers that are supposed to be unique.
  
  
  Solution:
  
  Check for Duplicates: Review the data you are