How To Fix /SCWM/DLV_API019 - Document keys must be unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/DLV_API -

• Message number: 019

• Message text: Document keys must be unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/DLV_API019 - Document keys must be unique ?

  The SAP error message /SCWM/DLV_API019 Document keys must be unique typically occurs in the context of the SAP Extended Warehouse Management (EWM) module when there is an attempt to create or process a document (such as a delivery or transfer order) that has duplicate keys. This can happen during various operations, such as inbound or outbound processing, where the system expects each document to have a unique identifier.
  Cause:
  
  Duplicate Document Keys: The most common cause of this error is that the system is trying to create or process a document that has a key (like a delivery number or transfer order number) that already exists in the database.
  Data Migration Issues: If data has been migrated from another system or if there have been manual entries that were not properly validated, it can lead to duplicate keys.
  Concurrency Issues: In some cases, if multiple processes are trying to create the same document simultaneously, it can lead to this error.
  Incorrect Configuration: Misconfiguration in the system settings or in the way documents are generated can also lead to duplicates.
  
  Solution:
  
  Check for Duplicates: Use transaction codes like /SCWM/PRDI or relevant reports to check for existing documents with the same key. Identify and resolve any duplicates.
  Adjust Document Creation Logic: Ensure that the logic used to create documents (like deliveries or transfer orders) is correctly implemented to prevent duplicates. This may involve reviewing custom code or enhancements.
  Data Cleanup: If duplicates are found, you may need to delete or archive the duplicate entries, ensuring that you maintain data integrity.
  Review Configuration: Check the configuration settings in EWM related to document generation to ensure they are set up correctly.
  Locking Mechanisms: Implement locking mechanisms to prevent concurrent processes from attempting to create the same document at the same time.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this issue or provide patches or updates that could resolve the problem.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in EWM, such as /SCWM/PRDI for inbound deliveries and /SCWM/PRDO for outbound deliveries.
  SAP Documentation: Review the official SAP documentation for EWM to understand the document management processes and best practices.
  Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex configurations or custom developments.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.