How To Fix CPCL115 - Sequence cannot be locked (lock management error)

SAP Error Message - Details

• Message type: E = Error

• Message class: CPCL - Service Layer for Plans, Sequences, Operations, and Subober.

• Message number: 115

• Message text: Sequence cannot be locked (lock management error)

INCLUDE NA_OBJ_ANLSPERRV OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CPCL115 - Sequence cannot be locked (lock management error) ?

  The SAP error message CPCL115, which states "Sequence cannot be locked (lock management error)," typically occurs in the context of SAP's lock management system. This error indicates that the system is unable to acquire a lock on a sequence number, which is often necessary for ensuring data integrity during concurrent processing.
  Causes:
  
  Concurrent Access: Multiple processes or users are trying to access or modify the same sequence number simultaneously, leading to a lock contention.
  Lock Table Overflow: The lock table may be full, preventing new locks from being acquired.
  Long-Running Transactions: A transaction that holds a lock for an extended period can block other transactions from acquiring the necessary locks.
  System Configuration Issues: Misconfigurations in the SAP system or database settings can lead to lock management errors.
  Database Issues: Problems with the underlying database, such as deadlocks or resource contention, can also cause this error.
  
  Solutions:
  
  Check for Concurrent Processes: Identify if there are multiple processes trying to access the same sequence. You can use transaction codes like SM12 (to check locks) and SM21 (to check system logs) to investigate.
  Wait and Retry: If the error is due to temporary contention, waiting for a short period and then retrying the operation may resolve the issue.
  Optimize Transactions: Review and optimize long-running transactions to ensure they release locks as quickly as possible.
  Increase Lock Table Size: If the lock table is full, consider increasing its size. This can be done by adjusting the parameters in the SAP profile (e.g., enque/table_size).
  Database Maintenance: Perform regular database maintenance to ensure that there are no underlying issues affecting lock management.
  Check for Deadlocks: Use database tools to check for deadlocks and resolve any issues that may be causing them.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently releases notes that address known issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to view system logs), and ST22 (to check for dumps).
  Performance Monitoring: Use transaction ST03N to monitor system performance and identify any bottlenecks that may be contributing to lock contention.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.