How To Fix EDATEX866 - Mass activity: Execute DEx tasks: Maximum no.of locks has been exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: EDATEX - Messages for Data Exchange Processes

• Message number: 866

• Message text: Mass activity: Execute DEx tasks: Maximum no.of locks has been exceeded

What causes this issue?

You want to execute data exchange tasks. To prevent several applications
executing the same data exchange tasks, the system sets locks for all
corresponding triple combinations of the data exchange process, own and
third party service providers. &v1& different triple combinations are
currently being processed for the current run. This requires a
corresponding large number of locks. Currently, the system supports a
maximum of &v2& locks.

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?

Change the selection criteria for the <PF>Execute Data Exchange</>
function so that fewer combinations need to be locked. You can do so by
not defining any selection options for the triple combination.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EDATEX866 - Mass activity: Execute DEx tasks: Maximum no.of locks has been exceeded ?

  The SAP error message EDATEX866 indicates that the maximum number of locks has been exceeded during the execution of mass activities, specifically when executing DEx (Data Exchange) tasks. This typically occurs in scenarios where a large number of records are being processed simultaneously, leading to a situation where the system cannot acquire the necessary locks on the database objects.
  Cause:
  
  High Volume of Data: The error often arises when processing a large volume of data, which requires more locks than the system is configured to allow.
  Lock Configuration: The default settings for the maximum number of locks may be too low for the operations being performed.
  Concurrent Processes: Multiple processes trying to access the same data simultaneously can lead to lock contention and exhaustion of available locks.
  Long-Running Transactions: If transactions are not being committed or rolled back in a timely manner, they can hold locks longer than necessary.
  
  Solution:
  
  
  Increase Lock Limit: 
  
  You can increase the maximum number of locks allowed in the system. This can be done by adjusting the parameter enque/table_size in the SAP profile parameters. Consult with your SAP Basis team to make this change.
  
  
  
  Optimize Data Processing:
  
  Break down the mass activity into smaller batches to reduce the number of locks required at any one time.
  Ensure that the data being processed is necessary and that any redundant or unnecessary records are filtered out before processing.
  
  
  
  Review Concurrent Processes:
  
  Check for other processes that may be running concurrently and consuming locks. If possible, schedule these processes to run at different times to reduce contention.
  
  
  
  Monitor and Manage Locks:
  
  Use transaction codes like SM12 to monitor and manage locks. You can identify and release unnecessary locks that may be held by long-running transactions.
  
  
  
  Transaction Management:
  
  Ensure that transactions are being committed or rolled back promptly to free up locks. Long-running transactions should be reviewed and optimized.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related issues.
  ST22: To analyze dumps that may provide insights into the error.
  
  
  
  SAP Documentation: Refer to SAP Help Portal for detailed documentation on lock management and performance tuning.
  
  
  Performance Tuning: Consider engaging with SAP Basis or performance tuning experts to analyze the system's performance and locking behavior.
  
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the EDATEX866 error and improve the efficiency of mass data processing activities in your SAP system.