How To Fix LCA_LCK101 - Invalid pointer dereferenced

SAP Error Message - Details

• Message type: E = Error

• Message class: LCA_LCK - Error Texts for the Lock Server Module

• Message number: 101

• Message text: Invalid pointer dereferenced

What causes this issue?

A severe internal error has occurred.

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?

Contact the liveCache application group, lock server module.

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 LCA_LCK101 - Invalid pointer dereferenced ?

  The SAP error message LCA_LCK101 Invalid pointer dereferenced typically indicates a problem related to memory management within the SAP system, particularly in the context of the Lock Management (LCA) component. This error can occur when the system attempts to access a memory location that is not valid or has not been properly initialized.
  Causes:
  
  Programming Errors: This error can arise from custom ABAP code or enhancements that improperly handle pointers or memory references.
  System Bugs: There may be bugs in the SAP kernel or specific modules that lead to invalid memory access.
  Data Corruption: Corrupted data in the database or in memory can lead to unexpected behavior and errors.
  Configuration Issues: Incorrect configuration settings in the system can also lead to pointer-related errors.
  
  Solutions:
  
  Check Custom Code: Review any custom ABAP code or enhancements that may be related to the Lock Management functionality. Look for any improper handling of pointers or memory references.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal. SAP may have released patches or notes addressing this specific error.
  System Update: Ensure that your SAP system is up to date with the latest support packages and kernel updates. This can resolve known bugs that may cause this error.
  Debugging: If you have access to the development environment, you can use the ABAP debugger to trace the execution of the code leading to the error. This can help identify the exact point of failure.
  Check System Logs: Review the system logs (transaction SM21) and short dumps (transaction ST22) for additional context or related errors that may provide more insight into the issue.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any relevant logs or dumps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SE80 (Object Navigator) for debugging.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Documentation: Review SAP documentation related to Lock Management and memory management for best practices and troubleshooting tips.
  
  By following these steps, you should be able to diagnose and potentially resolve the LCA_LCK101 error in your SAP system.