How To Fix /PM0/3FM_MESSAGES016 - Sibling &1 is used by more than one parent element

/PM0/3FM_MESSAGES016 - Overview

• Message type: E = Error

• Message class: /PM0/3FM_MESSAGES -

• Message number: 016

• Message text: Sibling &1 is used by more than one parent element

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/3FM_MESSAGES016 - Sibling &1 is used by more than one parent element ?

  The SAP error message /PM0/3FM_MESSAGES016 indicates that a sibling element (in this case, an object or component) is being referenced by more than one parent element in a hierarchical structure. This typically occurs in scenarios involving master data, such as in the context of project management, product structures, or other hierarchical data models.
  
  Cause:
  
  Data Structure Violation: The error arises when the same child element (sibling) is assigned to multiple parent elements, which violates the expected one-to-many relationship in the data structure.
  Incorrect Configuration: This can happen due to incorrect configuration or data entry, where a single component is mistakenly linked to multiple parent structures.
  Data Migration Issues: If data has been migrated from another system or manually entered, inconsistencies may arise leading to this error.
  
  
  Solution:
  
  Identify the Sibling and Parent Elements: Review the error message to identify the specific sibling element (&1) and the parent elements it is associated with. This will help you