How To Fix PWWW440 - Data saved - some records deleted due to collision

SAP Error Message - Details

• Message type: E = Error

• Message class: PWWW - HR: Internet Scenarios

• Message number: 440

• Message text: Data saved - some records deleted due to collision

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PWWW440 - Data saved - some records deleted due to collision ?

  The SAP error message PWWW440: Data saved - some records deleted due to collision typically occurs in the context of SAP applications that involve data processing, such as SAP CRM or SAP ERP systems. This message indicates that while saving data, some records were deleted because of a collision, which usually means that there were conflicting changes made to the same data by different users or processes.
  Cause:
  
  Concurrent Updates: Multiple users or processes are trying to update the same record simultaneously, leading to a conflict.
  Data Locking: The system may have locked certain records for editing, and when another user tries to save changes to those records, the system detects a collision.
  Data Integrity Rules: The application may have specific rules that prevent certain records from being saved if they conflict with existing data.
  
  Solution:
  
  Refresh Data: Before saving, refresh the data to ensure you are working with the most current version. This can help avoid collisions.
  Check for Locks: Investigate if the records are locked by another user or process. You can use transaction codes like SM12 to check for locks.
  Communicate with Users: If multiple users are working on the same data, coordinate with them to avoid simultaneous updates.
  Error Handling: Implement error handling in your application to manage such collisions gracefully, possibly by notifying users of the conflict and allowing them to resolve it.
  Review Custom Code: If you have custom developments, review the code to ensure it handles data updates correctly and adheres to SAP's best practices for data integrity.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to check for locks), SM21 (to view system logs), and ST22 (to check for dumps) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Training: Provide training for users on how to handle data updates and the importance of checking for existing records before making changes.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical support team for further investigation.