How To Fix /SAPAPO/SNP171 - Order &1 NOT deleted: Order was changed by another transaction.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNP -

• Message number: 171

• Message text: Order &1 NOT deleted: Order was changed by another transaction.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SNP171 - Order &1 NOT deleted: Order was changed by another transaction. ?

  The SAP error message /SAPAPO/SNP171 Order &1 NOT deleted: Order was changed by another transaction typically occurs in the SAP Advanced Planning and Optimization (APO) module, specifically within the Supply Network Planning (SNP) component. This error indicates that an attempt to delete a specific order (identified by &1) has failed because the order was modified by another transaction or user in the system.
  Cause:
  
  Concurrent Modifications: The most common cause of this error is that the order is being modified by another user or process at the same time you are trying to delete it. This can happen in environments where multiple users are working on the same data.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If an order is locked by another transaction, any attempt to delete it will result in this error.
  Background Jobs: Sometimes, background jobs or batch processes may be updating the order while you are trying to delete it.
  
  Solution:
  
  Check for Locks: Use transaction code SM12 to check for any locks on the order. If you find that another user or process has locked the order, you may need to wait until the lock is released.
  Retry the Operation: After confirming that no other transactions are modifying the order, try to delete the order again.
  Communication: If you are in a multi-user environment, communicate with your team to ensure that no one else is working on the same order at the same time.
  Transaction Monitoring: Use transaction SM21 to check the system log for any related messages that might give you more context about what other transactions are affecting the order.
  Debugging: If the issue persists, consider debugging the process to identify any specific code or logic that might be causing the conflict.
  
  Related Information:
  
  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 Documentation: Review the user documentation for the APO module to understand the implications of order management and the locking mechanisms in place.
  System Performance: In some cases, system performance issues can lead to delays in locking and unlocking processes. Ensure that your SAP system is performing optimally.
  
  If the problem continues after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.