How To Fix NGC_CORE_DB006 - Table &1 cannot be locked: already locked

SAP Error Message - Details

• Message type: E = Error

• Message class: NGC_CORE_DB - Message class for Conversion reports

• Message number: 006

• Message text: Table &1 cannot be locked: already locked

What causes this issue?

Table &V1& cannot be locked: already locked.

System Response

The conversion is aborted.

How to fix this error?

Unlock the table (other applications are locking it 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_DB006 - Table &1 cannot be locked: already locked ?

  The SAP error message NGC_CORE_DB006 indicates that a specific database table (denoted by &1) cannot be locked because it is already locked by another process. This situation typically arises in environments where multiple users or processes are trying to access or modify the same data concurrently.
  Causes:
  
  Concurrent Access: Another transaction or user is currently accessing the table, which prevents your transaction from obtaining a lock.
  Long-Running Transactions: A transaction that takes a long time to complete may hold a lock on the table longer than expected.
  Deadlocks: In some cases, a deadlock situation may occur where two or more processes are waiting for each other to release locks.
  Database Configuration: Certain database configurations or settings may lead to locking issues, especially in high-concurrency environments.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify the Locking Process: Use transaction codes like SM12 (for