How To Fix PU018 - Header &1: Was already edited by an external job

SAP Error Message - Details

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 018

• Message text: Header &1: Was already edited by an external job

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PU018 - Header &1: Was already edited by an external job ?

  The SAP error message PU018 ("Header &1: Was already edited by an external job") typically occurs in the context of HR (Human Resources) or payroll processing when a particular infotype or record is being accessed or modified by multiple processes or users simultaneously. This can lead to data consistency issues, and SAP prevents changes to avoid conflicts.
  Cause:
  
  Concurrent Access: The error usually arises when an infotype record (like employee data) is being edited by another user or background job at the same time.
  Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. If a record is locked by another process, any attempt to edit it will result in this error.
  Long-running Jobs: If a background job is taking a long time to process, it may hold the lock on the record longer than expected.
  
  Solution:
  
  Wait and Retry: If the error is due to a temporary lock, waiting for a few moments and then retrying the operation may resolve the issue.
  Check Background Jobs: Use transaction codes like SM37 to check for any long-running background jobs that might be locking the record. If you identify a job that is causing the lock, you may need to wait for it to complete or, if appropriate, terminate it.
  Identify the Lock: Use transaction code SM12 to check for locks on the specific record. You can see which user or job is holding the lock and take appropriate action.
  Coordination: If multiple users are working on the same data, coordinate with your team to avoid simultaneous edits.
  System Configuration: In some cases, it may be necessary to review system settings or configurations related to locking behavior, especially if this issue occurs frequently.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM37: To monitor background jobs.
  SE11: To check the structure of the infotype if needed.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on data locking and concurrency control for a deeper understanding of how SAP manages data integrity.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.