How To Fix /AIF/ENGINE_PERSIST002 - Data message &1 could not be locked (line no. &2)

/AIF/ENGINE_PERSIST002 - Overview

• Message type: E = Error

• Message class: /AIF/ENGINE_PERSIST -

• Message number: 002

• Message text: Data message &1 could not be locked (line no. &2)

Self-Explanatory Message

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/AIF/ENGINE_PERSIST002 - Details

• The SAP error message /AIF/ENGINE_PERSIST002 Data message &1 could not be locked (line no. &2) typically occurs in the context of the Application Interface Framework (AIF) when there is an attempt to lock a data message for processing, but the lock cannot be acquired. This can happen for several reasons, including:
  Causes:
  
  Concurrent Processing: Another process or user might already be processing the same message, leading to a lock conflict.
  Database Locking Issues: There may be issues with database locks, where the database is unable to grant a lock due to existing locks on the same data.
  Long-Running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, preventing other processes from acquiring the necessary locks.
  
  Configuration Issues: There may be configuration settings in AIF that are not set correctly, leading to locking issues.
  
  Solutions:
  
  Check for Concurrent Processes: Investigate if there are other processes or users that are currently