How To Fix /SCDL/DL_DBAL_ERROR020 - Error when locking

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCDL/DL_DBAL_ERROR -

• Message number: 020

• Message text: Error when locking

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCDL/DL_DBAL_ERROR020 - Error when locking ?

  The SAP error message /SCDL/DL_DBAL_ERROR020 typically indicates a database locking issue within the SAP system, particularly related to the Data Lifecycle Management (DLM) component. This error can occur when there is an attempt to lock a database object, but the lock cannot be acquired due to various reasons.
  Causes:
  
  Concurrent Access: Another process or user may already have a lock on the database object you are trying to access.
  Long-Running Transactions: A transaction that is taking too long to complete may hold locks longer than expected, preventing other transactions from acquiring the necessary locks.
  Deadlocks: Situations where two or more transactions are waiting for each other to release locks can lead to deadlocks.
  Database 
  Configuration Issues: Misconfigurations in the database settings or insufficient resources can lead to locking issues.
  Network Issues: Temporary network issues can cause communication problems between the application and the database, leading to lock acquisition failures.
  
  Solutions:
  
  
  Identify and Terminate Blocking Sessions:
  
  Use transaction codes like