How To Fix RTCMMD291 - The parent node of the structure to be inserted is not unique

RTCMMD291 - Overview

• Message type: E = Error

• Message class: RTCMMD - Article Hierarchy

• Message number: 291

• Message text: The parent node of the structure to be inserted 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 RTCMMD291 - The parent node of the structure to be inserted is not unique ?

  The SAP error message RTCMMD291, which states "The parent node of the structure to be inserted is not unique," typically occurs in the context of data modeling or when working with hierarchical structures in SAP, such as in the context of Master Data Management (MDM) or similar applications.
  
  Cause:
  This error usually arises when you are trying to insert a new node (or record) into a hierarchical structure, but the parent node you are trying to associate it with is not unique. This can happen due to several reasons:
  
  Duplicate Parent Node: There may already be a node with the same identifier or key as the parent node you are trying to use.
  Incorrect Hierarchical Structure: The structure you are trying to insert into may not be correctly defined, leading to ambiguity in identifying the parent node.
  Data Integrity Issues: There may be issues with the data integrity in the system, where the expected unique