How To Fix 14402 - Error establishing CPIC connection

SAP Error Message - Details

• Message type: E = Error

• Message class: 14 - Task handler messages

• Message number: 402

• Message text: Error establishing CPIC connection

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 14402 - Error establishing CPIC connection ?

  The SAP error message "14402: Error establishing CPIC connection" typically indicates a problem with the connection between the SAP application server and the database or another SAP system. CPIC (Common Programming Interface for Communication) is a protocol used for communication between SAP systems and other systems.
  Causes of Error 14402
  
  
  Network Issues: There may be network connectivity problems between the SAP application server and the database or other SAP systems.
  
  
  Configuration Errors: Incorrect configuration settings in the SAP system or the database can lead to connection issues. This includes incorrect parameters in the tnsnames.ora file or the SAP connection settings.
  
  
  Database Availability: The database server may be down or not reachable due to maintenance or other issues.
  
  
  Firewall Restrictions: Firewalls may be blocking the necessary ports for communication between the SAP system and the database.
  
  
  Resource Limitations: The database server may be experiencing resource limitations, such as too many connections or insufficient memory.
  
  
  SAP Kernel Issues: There may be issues with the SAP kernel or the version of the SAP system being used.
  
  
  Solutions to Error 14402
  
  
  Check Network Connectivity: Ensure that the network connection between the SAP application server and the database is stable. You can use tools like ping or traceroute to diagnose network issues.
  
  
  Review Configuration Settings: Verify the configuration settings in the SAP system and the database. Check the tnsnames.ora file for Oracle databases or the relevant configuration files for other databases.
  
  
  Database Status: Check if the database is up and running. You can do this by logging into the database directly or using monitoring tools.
  
  
  Firewall Settings: Ensure that the necessary ports are open in the firewall settings. Common ports for SAP and databases should be allowed.
  
  
  Monitor Resource Usage: Check the resource usage on the database server. If it is overloaded, consider optimizing queries or increasing resources.
  
  
  SAP Notes and Patches: Check for any relevant SAP Notes or patches that may address known issues with the version of SAP you are using.
  
  
  Restart Services: Sometimes, simply restarting the SAP application server or the database server can resolve transient issues.
  
  
  Consult Logs: Review the SAP application logs and database logs for more detailed error messages that can provide additional context for the issue.
  
  
  Related Information
  
  
  SAP Notes: Search the SAP Support Portal for specific notes related to error 14402. SAP frequently publishes notes that provide solutions or workarounds for known issues.
  
  
  Documentation: Refer to the official SAP documentation for guidance on configuring connections and troubleshooting CPIC errors.
  
  
  Community Forums: Engage with the SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult with SAP support for further assistance.