How To Fix MDGBP131 - System lock error

SAP Error Message - Details

• Message type: E = Error

• Message class: MDGBP - Master Data Governance: Business Partner specific messages

• Message number: 131

• Message text: System lock error

What causes this issue?

The program attempted to block objects from an existing change. A system
error occurred.

System Response

The exception error MDGBP131 appears and the program running is abruptly
ended.

How to fix this error?

It is probable that some network components are currently not available.
You must notify your system administrator.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDGBP131 - System lock error ?

  The SAP error message MDGBP131, which indicates a "System lock error," typically occurs in the context of the Material Requirements Planning (MRP) process. This error can arise when there is a conflict in accessing or processing data due to system locks. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  System Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies when multiple users or processes try to access or modify the same data simultaneously. If a process is already holding a lock on a resource, another process trying to access that resource may encounter a lock error.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, leading to other transactions being unable to access the required data.
  Deadlocks: In some cases, two or more processes may be waiting for each other to release locks, resulting in a deadlock situation.
  Configuration Issues: Incorrect configuration in MRP settings or related modules can also lead to locking issues.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for existing locks. You can see which user or process is holding the lock and what data is being locked.
  Release the Lock: If you identify a lock that is no longer needed, you can manually release it from the SM12 transaction. However, be cautious when doing this, as it may lead to data inconsistencies if the process holding the lock is still active.
  Optimize Long-Running Processes: Review and optimize any long-running transactions that may be causing locks. This could involve improving performance or breaking down large transactions into smaller, more manageable ones.
  Check for Deadlocks: If you suspect a deadlock, you may need to analyze the processes involved and determine if they can be restructured to avoid the deadlock situation.
  Review MRP Configuration: Ensure that your MRP settings and configurations are correct. This includes checking for any custom developments or enhancements that may interfere with standard processes.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address known issues related to MDGBP131.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for locks), SM21 (for system logs), and ST22 (for dumps) to diagnose issues.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to MRP and system locking mechanisms for a deeper understanding of how locks are managed within the system.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP Basis team or reach out to SAP support for further assistance.