How To Fix MC661 - Lock object & not activated

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 661

• Message text: Lock object & not activated

What causes this issue?

The specified object could not be activated.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You can probably find more information about this error further up in
this log.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC661 - Lock object & not activated ?

  The SAP error message MC661 indicates that a lock object is not activated. This typically occurs in the context of SAP's data consistency and concurrency control mechanisms, particularly when dealing with database operations that require locking to prevent data inconsistencies.
  Cause:
  
  Lock Object Not Activated: The primary cause of this error is that the lock object referenced in the program or transaction is not activated in the SAP system. Lock objects are defined in the ABAP Dictionary and must be generated and activated for them to function correctly.
  Development Environment Issues: If you are working in a development environment, it is possible that the lock object was created but not activated due to a lack of proper authorization or oversight.
  Transport Issues: If the lock object was transported from another system (like Development to Quality or Production), it may not have been activated in the target system.
  
  Solution:
  
  
  Activate the Lock Object:
  
  Go to transaction code SE11 (Data Dictionary).
  Enter the name of the lock object that is causing the error.
  Check if the lock object is defined and then click on the "Activate" button to activate it.
  If the lock object is not found, you may need to create it or check with your development team.
  
  
  
  Check Authorization: Ensure that you have the necessary authorizations to activate lock objects. If you do not have the required permissions, contact your SAP Basis or security team.
  
  
  Transport Request: If the lock object was transported, ensure that the transport request was successfully imported and that the lock object is activated in the target system.
  
  
  Check for Errors in the Development Environment: If you are in a development environment, check for any errors in the creation or activation of the lock object. You can also check the transport logs for any issues.
  
  
  Consult Documentation: If you are unsure about the lock object or its purpose, consult the documentation or reach out to your SAP functional or technical team for clarification.
  
  
  Related Information:
  
  Lock Objects: Lock objects are used in SAP to manage concurrent access to data. They ensure that when one user is modifying data, other users cannot access that data until the first user has completed their transaction.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) for further investigation.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to the specific lock object or error message.
  
  By following these steps, you should be able to resolve the MC661 error and ensure that the lock object is properly activated in your SAP system.