How To Fix COM_PARTNER257 - Deadlock exists in partner det. proc. &1; determination is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_PARTNER - Partner Processing Messages

• Message number: 257

• Message text: Deadlock exists in partner det. proc. &1; determination is not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message COM_PARTNER257 - Deadlock exists in partner det. proc. &1; determination is not possible ?

  The SAP error message COM_PARTNER257 indicates that a deadlock situation has occurred in the partner determination process for a specific business object. This typically happens when two or more processes are waiting for each other to release resources, leading to a standstill where none of the processes can proceed.
  Cause:
  
  Deadlock Situation: The most common cause is that two or more transactions are trying to access the same resources simultaneously, leading to a deadlock.
  Concurrency Issues: Multiple users or processes trying to update or read the same data at the same time can lead to conflicts.
  Database Locking: If the database locks are not managed properly, it can lead to deadlocks.
  Custom Code: If there are custom enhancements or modifications in the partner determination logic, they might not handle concurrency well.
  
  Solution:
  
  Identify the Deadlock: Use transaction codes like SM21 (System Log) or SM12 (Display and Delete Locks) to identify the processes involved in the deadlock.
  Analyze the Code: If there are custom developments, review the code for potential issues that could lead to deadlocks. Ensure that locks are acquired and released properly.
  Optimize Database Access: Ensure that database access patterns are optimized to minimize locking. This may involve changing the order of operations or reducing the scope of locks.
  Increase Timeout Settings: In some cases, increasing the timeout settings for database locks can help mitigate the issue, but this is more of a workaround than a solution.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches that could resolve underlying issues.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it is affecting business operations.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM21, SM12, SM37 (Job Monitoring), and ST22 (Dump Analysis) to help diagnose the issue.
  Performance Monitoring: Regularly monitor system performance and locking behavior to proactively identify potential deadlocks.
  Documentation: Review SAP documentation on partner determination processes and locking mechanisms to understand how they work and how to manage them effectively.
  
  By following these steps, you should be able to identify the cause of the deadlock and implement a solution to prevent it from occurring in the future.