How To Fix NGC_CORE_DB002 - Number of business objects already locked: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: NGC_CORE_DB - Message class for Conversion reports

• Message number: 002

• Message text: Number of business objects already locked: &1

What causes this issue?

There is at least one business object which is foreign locked. The
details can be found in the full log of the conversion report
(RNGC_CONV_REF_CHAR), where the IDs of the locked business objects are
indicated with warning messages.

System Response

The reference characteristic values of these business objects cannot be
copied to table AUSP, therefore they are skipped.

How to fix this error?

If the reference characteristic values of these business objects are not
necessary to be copied to AUSP, then there is no action required.
Otherwise, unlock the business objects (other applications are locking
them at the moment) and run the conversion again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NGC_CORE_DB002 - Number of business objects already locked: &1 ?

  The SAP error message NGC_CORE_DB002, which states "Number of business objects already locked: &1," typically occurs in the context of SAP applications that involve business object locking mechanisms. This error indicates that the system is trying to lock a business object, but it has already reached the maximum number of locks allowed for that object.
  Cause:
  
  Exceeding Lock Limit: Each business object in SAP has a limit on the number of concurrent locks that can be held. If this limit is exceeded, the system will throw this error.
  Long-Running Transactions: If a transaction that holds a lock is taking too long to complete, it can prevent other transactions from acquiring the necessary locks.
  Improper Lock Management: If locks are not being released properly due to programming errors or transaction failures, it can lead to this situation.
  High Concurrency: In environments with high concurrency, multiple users or processes may attempt to lock the same business object simultaneously, leading to this error.
  
  Solution:
  
  Identify and Release Locks: Use transaction codes like SM12 to check for existing locks on the business object. You can identify the user or process holding the lock and release it if necessary.
  Optimize Transactions: Review the transactions that are causing the locks. Ensure they are optimized for performance and complete as quickly as possible to minimize lock duration.
  Increase Lock Limit: If feasible, consider increasing the lock limit for the specific business object in the system configuration. This should be done with caution and in consultation with your SAP Basis team.
  Review Code: If the error is occurring due to custom development, review the code to ensure that locks are being managed properly and released when no longer needed.
  Monitor System Performance: Regularly monitor system performance and lock statistics to identify patterns that may lead to excessive locking.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: Display and manage locks.
  SM21: System log for monitoring errors and warnings.
  ST22: Dump analysis for checking ABAP runtime errors.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on business object locking and transaction management for best practices.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.