How To Fix /SDF/CCM023 - Activation of servers for UPL has restarted

SAP Error Message - Details

• Message type: E = Error

• Message class: /SDF/CCM -

• Message number: 023

• Message text: Activation of servers for UPL has restarted

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 /SDF/CCM023 - Activation of servers for UPL has restarted ?

  The SAP error message /SDF/CCM023 Activation of servers for UPL has restarted typically relates to issues with the Unified Performance Logging (UPL) feature in SAP. This feature is used to collect performance data for analysis and optimization purposes. The error indicates that the activation of servers for UPL has been restarted, which can happen due to various reasons.
  Causes:
  
  Configuration Issues: Incorrect configuration settings for UPL can lead to activation problems.
  System Resource Constraints: Insufficient system resources (CPU, memory, etc.) can cause the UPL activation process to fail or restart.
  Network Issues: Problems with network connectivity between the application server and the database can interrupt the activation process.
  Software Bugs: There may be bugs in the SAP version you are using that affect UPL functionality.
  Transport Issues: If there are issues with the transport layer or if the UPL settings were recently transported, it could lead to this error.
  
  Solutions:
  
  Check Configuration: Review the UPL configuration settings in the SAP system. Ensure that all parameters are set correctly.
  Monitor System Resources: Use transaction codes like ST02 (buffer management), ST06 (OS monitor), and SM50 (process overview) to check for resource bottlenecks.
  Review Logs: Check the system logs (transaction SM21) and UPL logs for any additional error messages that could provide more context.
  Restart UPL: You can try to manually restart the UPL service. This can often resolve temporary issues.
  Update SAP: Ensure that your SAP system is up to date with the latest patches and support packages, as these may contain fixes for known issues.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or related issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you suspect a bug or require deeper analysis.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SDF (for UPL settings) and SMD (for monitoring).
  Documentation: Review SAP documentation on UPL for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /SDF/CCM023 error message in your SAP system.