How To Fix AIPLOC020 - An error occurred when locking the data

SAP Error Message - Details

• Message type: E = Error

• Message class: AIPLOC - AIP: Cross-System Flow of Goods

• Message number: 020

• Message text: An error occurred when locking the data

What causes this issue?

An error occurred when locking the view data V_T001W_EXT. It might be
that the data is currently being changed by another user, or there
might be an error in the lock management.

System Response

The data could not be changed or saved.

How to fix this error?

Check whether the requested object is locked by another user (table
<ZH>RSTABLE</>, lock argument <ZH>T001W_EXT</>).
<DS:TRAN.SM12>List of lock entries</>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AIPLOC020 - An error occurred when locking the data ?

  The SAP error message AIPLOC020, which states "An error occurred when locking the data," typically occurs in the context of data locking mechanisms in SAP, particularly when multiple users or processes attempt to access or modify the same data simultaneously. This can lead to conflicts and result in the error message being displayed.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access or modify the same data at the same time, leading to a locking conflict.
  Database Lock Issues: There may be issues with the database locks that prevent the system from acquiring the necessary locks for the operation.
  Long-Running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  System Performance Issues: High system load or performance issues can lead to delays in lock acquisition and result in errors.
  Configuration Issues: Incorrect configuration of the locking mechanism or related settings in SAP can also lead to this error.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find locks that are no longer needed, you can delete them (if you have the necessary authorizations).
  Review User Activity: Identify if multiple users are trying to access the same data simultaneously. If possible, coordinate user activities to avoid conflicts.
  Optimize Transactions: Review and optimize long-running transactions to ensure they complete in a timely manner, thus releasing locks more quickly.
  System Performance Monitoring: Monitor system performance and resource usage to identify any bottlenecks that may be affecting lock acquisition.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Restart the Application: In some cases, restarting the application or the relevant transaction can help clear temporary issues causing the lock error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SM21 (for system logs), and ST22 (for dumps) to help diagnose the issue.
  SAP Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team or support personnel to investigate deeper into system configurations and performance.
  Documentation: Review SAP documentation related to data locking and concurrency control for a better understanding of how locks are managed within the system.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.