How To Fix /SAPAPO/CDPSSFW021 - Unexpected error when accessing the liveCache

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSSFW -

• Message number: 021

• Message text: Unexpected error when accessing the liveCache

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSSFW021 - Unexpected error when accessing the liveCache ?

  The SAP error message /SAPAPO/CDPSSFW021 Unexpected error when accessing the liveCache typically indicates an issue with the LiveCache database, which is used in SAP Advanced Planning and Optimization (APO) for storing and processing planning data. This error can arise due to various reasons, including connectivity issues, configuration problems, or data inconsistencies.
  Causes:
  
  LiveCache Connectivity Issues: There may be a problem with the connection between the SAP application server and the LiveCache database.
  LiveCache Configuration: Incorrect configuration settings in the LiveCache or the APO system can lead to access issues.
  Database Corruption: The LiveCache database may be corrupted or have inconsistencies that prevent proper access.
  Resource Limitations: Insufficient memory or CPU resources allocated to the LiveCache can cause it to become unresponsive.
  Version Mismatch: Incompatibility between the versions of the SAP system and the LiveCache can lead to unexpected errors.
  
  Solutions:
  
  Check Connectivity: Ensure that the connection between the SAP application server and the LiveCache is active. You can use transaction LC10 to check the LiveCache status.
  Review Configuration: Verify the configuration settings for LiveCache in the SAP system. Ensure that all parameters are set correctly.
  Database Consistency Check: Use transaction LC10 to perform a consistency check on the LiveCache database. If inconsistencies are found, you may need to run repair tools or restore from a backup.
  Monitor Resources: Check the system resources (CPU, memory) allocated to the LiveCache. If necessary, increase the resources or optimize the workload.
  Update Software: Ensure that both the SAP system and LiveCache are updated to compatible versions. Check for any patches or updates that may resolve known issues.
  Restart Services: Sometimes, simply restarting the LiveCache service or the entire SAP system can resolve transient issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to LiveCache errors for specific fixes or recommendations. You can search for relevant notes in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LC10 (LiveCache Monitor), LC11 (LiveCache Administration), and LC12 (LiveCache Performance).
  Logs and Traces: Review system logs and traces for more detailed error messages that can provide additional context for troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.