How To Fix UC727 - CPIC: Communication link dissolved

SAP Error Message - Details

• Message type: E = Error

• Message class: UC - FI/CO Data transfer: errors during transfer

• Message number: 727

• Message text: CPIC: Communication link dissolved

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 UC727 - CPIC: Communication link dissolved ?

  The SAP error message "UC727 CPIC: Communication link dissolved" typically indicates that there is a problem with the communication between the SAP application server and the database or between the SAP application server and the client. This error can occur due to various reasons, including network issues, configuration problems, or resource limitations.
  Causes:
  
  Network Issues: Temporary network disruptions or instability can lead to communication link failures.
  Database Connection Problems: The database server may be down, or there may be issues with the database connection settings.
  Timeouts: Long-running transactions may exceed the timeout settings, causing the connection to be terminated.
  Resource Limitations: Insufficient resources (CPU, memory) on the application server or database server can lead to dropped connections.
  Firewall or Security Settings: Firewalls or security settings may block the communication between the SAP application and the database.
  SAP Kernel or Patch Issues: Bugs or issues in the SAP kernel or missing patches can also lead to communication problems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP application server and the database server is stable. Use tools like ping or traceroute to diagnose network issues.
  Review Database Status: Check if the database is up and running. Look for any error messages in the database logs that might indicate issues.
  Increase Timeout Settings: If timeouts are causing the issue, consider increasing the timeout settings in the SAP system or database configuration.
  Monitor Resource Usage: Use monitoring tools to check the resource usage on both the application server and the database server. If resources are low, consider scaling up the infrastructure.
  Check Firewall Settings: Ensure that the necessary ports are open and that there are no firewall rules blocking the communication.
  Update SAP Kernel and Patches: Make sure that your SAP system is up to date with the latest kernel and patches. Check SAP Notes for any known issues related to this error.
  Review SAP Logs: Check the SAP application logs (transaction SM21) and the developer traces (transaction ST22) for more detailed error messages that can provide additional context.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the UC727 error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation for best practices on configuring network settings and database connections.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or contact SAP support for further assistance.