How To Fix CACS_ICM_PRX014 - Exactly-once request cannot be locked: &1 (error code &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CACS_ICM_PRX - Messages in ICM services

• Message number: 014

• Message text: Exactly-once request cannot be locked: &1 (error code &2)

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 CACS_ICM_PRX014 - Exactly-once request cannot be locked: &1 (error code &2) ?

  The SAP error message CACS_ICM_PRX014 indicates that an "Exactly-once request cannot be locked" for a specific request identified by &1 and an associated error code &2. This error typically occurs in the context of the SAP Convergent Charging (SAP CC) or similar systems that handle transaction processing and require locking mechanisms to ensure data integrity.
  Cause:
  
  Concurrency Issues: The error usually arises when multiple processes or threads attempt to access or modify the same request simultaneously. The locking mechanism is designed to prevent data corruption, and if it cannot acquire a lock on the request, it raises this error.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold onto the lock longer than expected, causing other requests to fail when they try to access the same resource.
  System Configuration: There may be configuration issues in the SAP system that affect how locks are managed or released.
  
  Solution:
  
  Retry the Operation: Often, simply retrying the operation after a short delay can resolve the issue, especially if it was caused by a temporary contention for the lock.
  Check for Long-Running Processes: Use transaction monitoring tools to identify any long-running processes that may be holding locks. If found, consider optimizing these processes or terminating them if they are no longer needed.
  Review Lock Management Settings: Ensure that the lock management settings in your SAP system are configured correctly. This may involve checking parameters related to locking behavior and timeout settings.
  Increase Lock Timeout: If appropriate, consider increasing the lock timeout settings to allow more time for locks to be acquired.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that address this specific error. There may be known issues or updates that can help resolve the problem.
  System Performance Tuning: If the issue is frequent, it may be worth investigating overall system performance and tuning the database or application server to handle concurrent requests more efficiently.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs) to gather more information about the state of the system when the error occurs.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Review the official SAP documentation for Convergent Charging or the specific module you are working with to understand the locking mechanisms in place.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for a deeper investigation into the issue.