How To Fix /ISDFPS/OM420 - Lock the objects to be used

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/OM -

• Message number: 420

• Message text: Lock the objects to be used

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/OM420 - Lock the objects to be used ?

  The SAP error message /ISDFPS/OM420 Lock the objects to be used typically occurs in the context of the SAP Integrated Business Planning (IBP) or SAP S/4HANA environments, particularly when dealing with planning and forecasting functionalities. This error indicates that there is an issue with object locking, which can prevent users from accessing or modifying certain planning objects.
  Cause:
  
  Concurrent Access: The error often arises when multiple users or processes are trying to access or modify the same planning object simultaneously. SAP locks the object to prevent data inconsistencies.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold a lock on the object longer than expected, causing other users to encounter this error.
  System Configuration: Incorrect configuration settings related to object locking in the SAP system can also lead to this error.
  Background Jobs: Background jobs that are processing data may lock objects, preventing other transactions from accessing them.
  
  Solution:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can identify which user or process is holding the lock and take appropriate action (e.g., contacting the user or terminating the session if necessary).
  Optimize Long-Running Transactions: Review and optimize any long-running transactions to ensure they complete in a timely manner, thus releasing locks more quickly.
  Review Configuration: Check the configuration settings related to object locking in your SAP system. Ensure that they are set up correctly to avoid unnecessary locking issues.
  Monitor Background Jobs: If background jobs are causing locks, consider scheduling them during off-peak hours or optimizing their performance to reduce locking duration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP documentation for the specific module you are working with (e.g., IBP, S/4HANA) for best practices regarding object locking and transaction management.
  User Training: Ensure that users are trained on how to properly access and modify planning objects to minimize the risk of concurrent access issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.