How To Fix RSENQ077 - Locks already set for index for characteristic '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSENQ - Lock Manager

• Message number: 077

• Message text: Locks already set for index for characteristic '&1'

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSENQ077 - Locks already set for index for characteristic '&1' ?

  The SAP error message RSENQ077 indicates that there are locks already set for an index related to a characteristic in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This typically occurs when multiple processes or requests are trying to access or modify the same data simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: The error usually arises when multiple processes are trying to access or modify the same characteristic or index at the same time.
  Long-Running Queries: If a query or data load process is taking a long time to complete, it may hold locks on the index, preventing other processes from accessing it.
  System Performance Issues: High system load or performance issues can exacerbate locking problems, leading to this error.
  
  Solution:
  
  Wait and Retry: Often, simply waiting for the current process to complete can resolve the issue. Once the locks are released, you can retry the operation.
  Check Running Processes: Use transaction codes like SM50 or SM66 to monitor active processes in the system. Identify any long-running processes that may be holding locks and consider terminating them if they are not critical.
  Optimize Queries: Review and optimize any queries or data loads that may be causing locks. Ensure that they are efficient and do not run longer than necessary.
  Adjust Lock Timeout Settings: If this is a frequent issue, consider adjusting the lock timeout settings in the system to allow for more flexibility in handling locks.
  System Maintenance: Regularly perform system maintenance tasks, such as database optimization and cleanup, to improve overall performance and reduce locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and ST22 (to check for dumps) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation on locking mechanisms in BW/BI to understand how locks are managed and how to avoid conflicts.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.