How To Fix /SAPAPO/TDL_DAO071 - Data for location &1 and product &2 are locked by user &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 071

• Message text: Data for location &1 and product &2 are locked by user &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TDL_DAO071 - Data for location &1 and product &2 are locked by user &3 ?

  The SAP error message /SAPAPO/TDL_DAO071 indicates that the data for a specific location and product is currently locked by another user. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when multiple users attempt to access or modify the same data simultaneously.
  Cause:
  
  Data Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies when multiple users are trying to access or modify the same data. If one user is currently editing or has locked the data for a specific location and product, other users will receive this error message when they attempt to access it.
  Long Transactions: If a user has a long-running transaction or has not properly released the lock (e.g., due to a session timeout or application crash), the lock may persist longer than necessary.
  User Sessions: Sometimes, a user may have multiple sessions open, and the lock is held in one of those sessions.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the user who holds the lock to finish their transaction and release the lock. You can retry accessing the data after some time.
  Identify the Locking User: If you need immediate access, you can identify the user who is holding the lock. This can be done using transaction codes like SM12 (for lock entries) or SM21 (for system logs) to see who is currently locking the data.
  Contact the Locking User: If possible, contact the user who is holding the lock and ask them to release it if they are done with their transaction.
  Release the Lock: If the locking user is unavailable or if the lock is stale (e.g., due to a session crash), a system administrator can manually release the lock using transaction SM12. However, this should be done with caution to avoid data inconsistencies.
  Review Locking Strategy: If this issue occurs frequently, it may be worth reviewing the locking strategy and transaction design to minimize conflicts. This could involve optimizing transaction times or implementing better user training on how to manage locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: View system logs to identify issues.
  SM37: Check job logs if the lock is related to background jobs.
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms and best practices in SAP APO.
  User Training: Educate users on how to properly manage their sessions and transactions to minimize locking issues.
  
  By following these steps, you should be able to resolve the locking issue and gain access to the required data.