How To Fix /SAPQUERY/BC_GLOBAL021 - Lock could not be set (system error)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPQUERY/BC_GLOBAL -

• Message number: 021

• Message text: Lock could not be set (system error)

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPQUERY/BC_GLOBAL021 - Lock could not be set (system error) ?

  The SAP error message /SAPQUERY/BC_GLOBAL021 Lock could not be set (system error) typically indicates that there is an issue with setting a lock in the SAP system. This can occur due to various reasons, including database issues, system resource limitations, or configuration problems.
  Causes:
  
  Database Lock Issues: The database may be experiencing issues that prevent locks from being set. This can happen if there are deadlocks or if the database is under heavy load.
  System Resource Limitations: If the SAP system is running low on resources (e.g., memory, CPU), it may not be able to handle lock requests properly.
  Configuration Problems: Incorrect configuration settings in the SAP system can lead to locking issues.
  Transport Issues: If there are ongoing transports or changes being made to the system, it may temporarily affect the ability to set locks.
  User Authorization: The user may not have the necessary authorizations to set locks in the system.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) for any related error messages that could provide more context about the issue.
  Monitor Database Performance: Use database monitoring tools to check for locks, deadlocks, or performance issues. Resolve any identified issues.
  Check System Resources: Monitor the system's resource usage (memory, CPU, etc.) using transaction ST02 (buffer management) and ST03 (workload analysis). If resources are low, consider optimizing or increasing them.
  Review Configuration: Ensure that the SAP system is correctly configured for locking mechanisms. Check relevant parameters in transaction RZ10 or RZ11.
  User Authorizations: Verify that the user encountering the error has the necessary authorizations to perform the action that requires the lock.
  Restart Services: In some cases, restarting the affected services or the entire SAP system may resolve transient issues.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide patches.
  
  Related Information:
  
  Transaction Codes: 
  
  SM21: System Log
  ST02: Tune Buffers
  ST03: Workload Analysis
  RZ10/RZ11: Profile Parameters
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs and system configurations.
  
  By following these steps, you should be able to diagnose and potentially resolve the /SAPQUERY/BC_GLOBAL021 Lock could not be set (system error) message in your SAP system.