How To Fix MDC_MODEL006 - Append name &1 is not unique

MDC_MODEL006 - Overview

• Message type: E = Error

• Message class: MDC_MODEL - Messages In Context Of MDC Model

• Message number: 006

• Message text: Append name &1 is not unique

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_MODEL006 - Append name &1 is not unique ?

  The SAP error message MDC_MODEL006, which states "Append name &1 is not unique," typically occurs in the context of SAP's Model Driven Configuration (MDC) or when working with data models in SAP systems. This error indicates that there is a naming conflict with an append structure in the data model, meaning that the name you are trying to use for an append structure already exists in the system.
  
  Cause:
  
  Duplicate Append Name: The most common cause of this error is that the append structure you are trying to create or modify has the same name as an existing append structure in the same context (e.g., for the same table or data model).
  Namespace Issues: If you are working in a development environment, there may be naming conflicts due to the use of common prefixes or namespaces that are not unique.
  Transport Issues: If you are transporting objects between systems (e.g., from development to quality