How To Fix /SAPAPO/RELEASE100 - System could not establish a connection to the liveCache

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RELEASE -

• Message number: 100

• Message text: System could not establish a connection to the liveCache

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RELEASE100 - System could not establish a connection to the liveCache ?

  The SAP error message /SAPAPO/RELEASE100 System could not establish a connection to the liveCache typically indicates that the SAP system is unable to connect to the liveCache database, which is crucial for Advanced Planning and Optimization (APO) functionalities. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  LiveCache Service Not Running: The liveCache service may not be started or is down.
  Network Issues: There could be network connectivity issues between the SAP application server and the liveCache server.
  Configuration Issues: Incorrect configuration settings in the SAP system or liveCache settings.
  Database Issues: The liveCache database may be corrupted or experiencing issues.
  Version Mismatch: There may be a version mismatch between the SAP system and the liveCache.
  
  Solutions:
  
  
  Check LiveCache Status:
  
  Ensure that the liveCache service is running. You can check this using the SAP Management Console (SAP MC) or by logging into the liveCache server and checking the service status.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues. You can use tools like ping or telnet to check connectivity between the SAP application server and the liveCache server.
  
  
  
  Configuration Settings:
  
  Check the configuration settings in the SAP system. Ensure that the liveCache connection parameters (like host, port, etc.) are correctly set in the SAP system.
  You can check the settings in transaction RSCUSTV10 or RSCUSTV20.
  
  
  
  Database Health:
  
  Check the health of the liveCache database. You may need to run database consistency checks or repair operations if there are issues.
  
  
  
  Restart Services:
  
  If the liveCache service is running but still not connecting, try restarting the liveCache service and the SAP application server.
  
  
  
  Check Logs:
  
  Review the logs for both the SAP system and the liveCache for any error messages that could provide more insight into the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes and documentation for any specific patches or updates that may address known issues with liveCache connectivity.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SM37 (Job Monitoring) to gather more information about the error.
  LiveCache Administration: Understanding how to administer liveCache can be beneficial. Refer to the SAP documentation for liveCache administration best practices.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further assistance.