How To Fix UC734 - CPIC &: Communication link problems - incomplete data received

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 734

• Message text: CPIC &: Communication link problems - incomplete data received

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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Smart SAP Assistant

• What is the cause and solution for SAP error message UC734 - CPIC &: Communication link problems - incomplete data received ?

  The SAP error message UC734 indicates a communication link problem, specifically that incomplete data has been received during a communication attempt. This error can occur in various scenarios, such as when connecting to an SAP system, during data transfer, or when executing remote function calls (RFC).
  Causes of UC734 Error
  
  
  Network Issues: Problems with the network connection, such as packet loss, high latency, or network interruptions, can lead to incomplete data being received.
  
  
  Configuration Errors: Incorrect configuration settings in the SAP system or in the network components (like firewalls, routers, etc.) can disrupt communication.
  
  
  SAP Kernel Issues: Bugs or issues in the SAP kernel or the application server can lead to communication problems.
  
  
  Resource Limitations: Insufficient resources on the server (like memory or CPU) can cause timeouts or incomplete data transfers.
  
  
  Version Mismatch: Incompatibility between different versions of SAP systems or between SAP and third-party systems can lead to communication issues.
  
  
  Timeout Settings: If the timeout settings for the communication are too low, it may result in incomplete data being received.
  
  
  Solutions to UC734 Error
  
  
  Check Network Connectivity: Ensure that the network connection between the client and the SAP server is stable. Use tools like ping or traceroute to diagnose network issues.
  
  
  Review Configuration Settings: Verify the configuration settings in the SAP system and any network devices (firewalls, routers) to ensure they are correctly set up for communication.
  
  
  Update SAP Kernel: If the issue is suspected to be related to the SAP kernel, consider updating to the latest version or applying relevant patches.
  
  
  Monitor System Resources: Check the server's resource usage (CPU, memory, etc.) to ensure it is not overloaded. If necessary, optimize the system or allocate more resources.
  
  
  Adjust Timeout Settings: Review and, if necessary, increase the timeout settings for the communication in the SAP system.
  
  
  Check for Version Compatibility: Ensure that all systems involved in the communication are compatible and running supported versions.
  
  
  Review Logs: Check the SAP system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages or clues that could help diagnose the issue.
  
  
  Contact SAP Support: If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information
  
  Transaction Codes: You can use transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SM37 (Job Monitoring) to gather more information about the error and its context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to UC734.
  Documentation: Review SAP documentation for best practices on network configuration and communication settings.
  
  By following these steps, you should be able to diagnose and resolve the UC734 error effectively.