How To Fix /SAPAPO/DP_EVENT112 - Lock error

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DP_EVENT -

• Message number: 112

• Message text: Lock error

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DP_EVENT112 - Lock error ?

  The SAP error message /SAPAPO/DP_EVENT112 typically indicates a lock error in the context of SAP Advanced Planning and Optimization (APO), specifically within the Demand Planning (DP) module. This error occurs when a process tries to access a resource that is currently locked by another process. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Concurrent Access: The most common cause of this error is that multiple users or processes are trying to access the same data or resource simultaneously, leading to a lock conflict.
  Long-Running Processes: If a process takes too long to complete, it may hold a lock for an extended period, causing other processes to fail with this error.
  System Configuration: Incorrect configuration of lock parameters or settings in the SAP system can also lead to locking issues.
  Database Locks: Sometimes, database-level locks can cause this issue, especially if there are transactions that are not being committed or rolled back properly.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for existing locks. You can identify the user or process that is holding the lock and take appropriate action.
  Release the Lock: If you find a lock that is no longer needed, you can manually delete it from the SM12 transaction. However, be cautious when doing this, as it may affect other users or processes.
  Review Long-Running Processes: Check for any long-running jobs or processes that may be holding locks. If possible, optimize these processes to reduce their execution time.
  Adjust Lock Parameters: Review and adjust the lock parameters in the system configuration if necessary. This may involve consulting with your SAP Basis team.
  Retry the Operation: After resolving the lock issue, retry the operation that caused the error.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as some lock issues may be resolved in newer versions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to analyze dumps).
  SAP Notes: Check SAP Notes for any known issues or fixes related to the /SAPAPO/DP_EVENT112 error. SAP Notes can provide specific guidance based on your version and configuration.
  Performance Monitoring: Regularly monitor system performance and lock situations to prevent future occurrences of this error.
  User Training: Ensure that users are trained on best practices for using the system to minimize the chances of lock conflicts.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or reach out to SAP directly for further assistance.