How To Fix /PLMI/PPE_SP023 - External key of &1 &2 is a duplicate

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPE_SP -

• Message number: 023

• Message text: External key of &1 &2 is a duplicate

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/PPE_SP023 - External key of &1 &2 is a duplicate ?

  The SAP error message /PLMI/PPE_SP023 External key of &1 &2 is a duplicate typically occurs in the context of SAP PLM (Product Lifecycle Management) when there is an attempt to create or update an object (like a document, material, or other entities) that has an external key which already exists in the system. The external key is a unique identifier that is used to link external data to SAP objects.
  Cause:
  
  Duplicate External Key: The primary cause of this error is that the external key you are trying to use for the object already exists in the database. This could happen if:
  
  You are trying to create a new object with an external key that has already been assigned to another object.
  There was a previous import or data migration that created duplicates.
  There is a mistake in the data entry process where the same external key is being reused.
  
  
  
  Solution:
  
  
  Check Existing Keys: Verify the existing external keys in the system to see if the key you are trying to use is already in use. You can do this by querying the relevant database table or using transaction codes that allow you to view the objects associated with external keys.
  
  
  Use a Unique Key: If the external key is indeed a duplicate, you will need to generate a new, unique external key for the object you are trying to create or update.
  
  
  Data Cleanup: If duplicates are found due to data migration or import processes, consider cleaning up the data to remove or consolidate duplicates.
  
  
  Consult Documentation: Review the SAP documentation or help resources related to the specific object type you are working with to understand the requirements for external keys.
  
  
  Error Handling: Implement error handling in your data processing logic to catch such errors and provide meaningful feedback to users or systems attempting to create or update objects.
  
  
  Related Information:
  
  Transaction Codes: Depending on the object type, you may use transaction codes like CV01N (Create Document), MM01 (Create Material), or others to manage the objects and their external keys.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Custom Development: If you have custom developments or enhancements, ensure that they are not causing conflicts with external key assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data model of your SAP system.