
System error occurred during lock administration
Message no. MC 600
Diagnosis
An internal error was found in the SAP lock management system when attempting to lock an object by calling an ENQUEUE function module.
System response
The SAP system cannot enter the required lock correctly into the lock table managed in the ENQUEUE server and the ENQUEUE function module therefore triggers an exception. If the application cannot process this excepton, the active transaction is automatically cancelled.
Procedure
The most common cause of this error message is that it is no longer possible to access the ENQUEUE server. The cause of this may be that either the ENQUEUE server itself or the message server which establishes the connection between the application server and the ENQUEUE server in a local system, is no longer running.


