How To Fix DI824 - Maximum number & of lock parameters exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 824

• Message text: Maximum number & of lock parameters exceeded

What causes this issue?

The lock object to be activated has a total of &V2&
<DS:TX.DDDOK_ENQU_PARAMETER>lock parameters</>. It therefore exceeds
the maximum number of &V1& lock parameters. The generated lock modules
therefore could be syntactically wrong.

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?

After activation check whether the generated lock modules are
syntactically correct. If this is not so, delete the lock object
immediately, as otherwise an application error could occur. Then
proceed as follows:
Check if this large number of lock parameters is really necessary. Try
to remove lock parameters in the definition of the lock object if these
are generically locked.
If you cannot reduce the number of lock parameters enough with the
specified actions, you must distribute the tables to be locked on
several lock objects. You then have to call more lock modules for the
<DS:TX.DDDOK_ENQU_CALL>lock request</>. You can also
<DS:TX.DDDOK_ENQU_COLLECT>collect locks in a local lock container</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI824 - Maximum number & of lock parameters exceeded ?

  The SAP error message DI824: Maximum number & of lock parameters exceeded typically occurs when the number of lock parameters specified in a lock request exceeds the maximum limit defined in the SAP system. This can happen in various scenarios, such as when a program or transaction tries to lock too many objects simultaneously.
  Cause:
  
  Excessive Lock Requests: The application or transaction is attempting to lock more objects than the system allows.
  Configuration Limits: The maximum number of lock parameters is defined in the system configuration, and the current request exceeds this limit.
  Inefficient Code: Poorly designed ABAP code or logic that unnecessarily locks multiple objects can lead to this error.
  
  Solution:
  
  Review Locking Logic: Analyze the ABAP code or transaction that is causing the error. Ensure that it only locks the necessary objects and avoids excessive locking.
  Optimize Lock Requests: If possible, reduce the number of objects being locked in a single request. This may involve breaking down the logic into smaller parts or processing objects in batches.
  Check Configuration: Consult with your SAP Basis team to check the configuration settings related to lock parameters. The maximum number of lock parameters can be adjusted in the system settings, but this should be done with caution and understanding of the implications.
  Use Lock Objects Wisely: Ensure that lock objects are used appropriately and that the locking mechanism is efficient. Consider using shared locks where applicable instead of exclusive locks.
  Monitor and Analyze: Use transaction codes like SM12 (to view lock entries) and SM21 (to check system logs) to monitor lock behavior and identify patterns that may lead to excessive locking.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review SAP documentation on lock management and performance tuning to understand best practices.
  Performance Tuning: Consider performance tuning of the application to minimize locking issues, which may involve database optimization or code refactoring.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.