How To Fix /S4PPM/HIERARCHY010 - A work package cannot have the same external ID as the project

/S4PPM/HIERARCHY010 - Overview

• Message type: E = Error

• Message class: /S4PPM/HIERARCHY -

• Message number: 010

• Message text: A work package cannot have the same external ID as the project

Self-Explanatory Message

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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 /S4PPM/HIERARCHY010 - A work package cannot have the same external ID as the project ?

  The SAP error message /S4PPM/HIERARCHY010 indicates that there is a conflict with the external ID of a work package in relation to the project it is associated with. Specifically, this error occurs when a work package is being created or modified, and its external ID is the same as that of the project it belongs to. In SAP Project and Portfolio Management (PPM), each project and work package must have unique external IDs to avoid confusion and ensure proper tracking and reporting.
  
  Cause:
  
  Duplicate External ID: The primary cause of this error is that the external ID assigned to the work package is identical to the external ID of the project.
  Data Entry Error: This can happen due to manual data entry errors where the same ID is mistakenly assigned to both the project and the work package.
  System Configuration: In some cases, system settings or configurations may lead to this issue if they