How To Fix QI002 - Entry in work list table QIWL cannot be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: QI - Notifications for interface modules for connecting subsyst.

• Message number: 002

• Message text: Entry in work list table QIWL cannot be locked

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 QI002 - Entry in work list table QIWL cannot be locked ?

  The SAP error message QI002, which states "Entry in work list table QIWL cannot be locked," typically occurs in the context of Quality Inspection (QI) processes. This error indicates that the system is unable to lock a specific entry in the work list table (QIWL) for processing, which can prevent users from performing certain actions related to quality inspections.
  Causes:
  
  Concurrent Access: Another user or process may be accessing the same entry in the QIWL table, leading to a lock conflict.
  Database Lock: The database may have a lock on the entry due to a previous transaction that has not been completed or has failed.
  System Performance Issues: High system load or performance issues can lead to delays in locking mechanisms.
  Configuration Issues: Incorrect configuration in the Quality Management module or related settings may lead to locking issues.
  
  Solutions:
  
  Check for Concurrent Users: Verify if another user is currently processing the same entry. If so, wait for them to complete their transaction.
  Transaction Monitoring: Use transaction codes like SM12 (to check for locks) and SM21 (to check system logs) to identify any locks that may be causing the issue. If you find a lock that is no longer needed, you may need to release it.
  Database Consistency: Ensure that the database is consistent and that there are no ongoing transactions that could be causing the lock. If necessary, consult with your database administrator.
  System Performance: Monitor system performance and check for any bottlenecks that may be affecting the locking mechanism. If the system is under heavy load, consider optimizing performance.
  Review Configuration: Check the configuration settings in the Quality Management module to ensure they are set up correctly. If there are any discrepancies, correct them.
  Restart the Session: Sometimes, simply logging out and logging back into the SAP system can resolve temporary locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage locks.
  SM21: To view system logs for errors and warnings.
  SE11: To view the structure of the QIWL table.
  
  
  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.
  User Authorization: Ensure that the user has the necessary authorizations to access and modify entries in the QIWL table.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.