How To Fix SVMCRT_LOCKING021 - Cannot create unique lock owner; reason: &1 (return code = &2)

SVMCRT_LOCKING021 - Overview

• Message type: E = Error

• Message class: SVMCRT_LOCKING - VMC Locking

• Message number: 021

• Message text: Cannot create unique lock owner; reason: &1 (return code = &2)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SVMCRT_LOCKING021 - Cannot create unique lock owner; reason: &1 (return code = &2) ?

  The SAP error message SVMCRT_LOCKING021 indicates that the system is unable to create a unique lock owner due to a specific reason, which is represented by &1, and a return code represented by &2. This error typically occurs in the context of SAP's locking mechanism, which is used to ensure data consistency during concurrent access.
  Causes:
  
  Lock Table Overflow: The lock table may be full, preventing new locks from being created.
  Invalid Lock Owner: The system may be trying to create a lock with an invalid or non-existent owner.
  Database Issues: There may be underlying database issues that are preventing the lock from being created.
  
  Configuration Issues: Incorrect configuration settings in the SAP system related to locking mechanisms.
  System Performance: High load on the system can lead to delays or failures in lock creation.
  
  Solutions:
  
  
  Check Lock Table Size:
  
  Use transaction code SM12 to check the current locks and see if the lock table is full. If it is,