How To Fix /SCWM/DLV_API020 - Item keys must be unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/DLV_API -

• Message number: 020

• Message text: Item 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_API020 - Item keys must be unique ?

  The SAP error message /SCWM/DLV_API020 Item keys must be unique typically occurs in the context of the SAP Extended Warehouse Management (EWM) module when there is an attempt to process a delivery or a related document that contains duplicate item keys. This error indicates that the system has detected multiple entries for the same item key, which violates the uniqueness requirement for item keys in the context of deliveries.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the same item is being added multiple times to a delivery or a related document, leading to duplicate item keys.
  Data Import Issues: If data is being imported from an external system or through a batch input session, it may inadvertently contain duplicates.
  Configuration Issues: There may be issues with the configuration of the delivery document types or item categories that allow for duplicates.
  User Error: Manual entry errors where users inadvertently add the same item multiple times.
  
  Solution:
  
  Check for Duplicates: Review the delivery or document in question to identify any duplicate item entries. Remove or consolidate duplicates as necessary.
  Data Validation: If data is being imported, ensure that there are validation checks in place to prevent duplicates from being included in the import file.
  Review Configuration: Check the configuration settings for the delivery document types and item categories to ensure they are set up correctly to prevent duplicates.
  Error Handling: Implement error handling in your processes to catch and manage duplicates before they reach the point of processing.
  Consult Logs: Review application logs or error logs for additional context on when and why the error is occurring.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SCWM/PRDI (for processing deliveries) or /SCWM/PRDI (for inbound deliveries) to analyze the documents and their items.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling item keys in EWM.
  Documentation: Refer to the SAP EWM documentation for best practices on managing deliveries and item keys.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or consult with a technical expert familiar with SAP EWM for further assistance.