How To Fix UC733 - CPIC &: Communication link problems - no data received

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 733

• Message text: CPIC &: Communication link problems - no 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message UC733 - CPIC &: Communication link problems - no data received ?

  The SAP error message UC733 indicates a communication link problem, specifically that no data has been received. This error typically occurs in scenarios where there is a failure in the communication between the SAP application server and the database or between different SAP systems. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network connection, such as high latency, packet loss, or network outages, can lead to communication failures.
  Database Issues: The database server may be down, unresponsive, or experiencing performance issues.
  Configuration Errors: Incorrect configuration settings in the SAP system or the database can lead to communication problems.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the SAP application server and the database or other systems.
  Resource Limitations: Insufficient resources (CPU, memory, etc.) on the application server or database server can lead to timeouts and communication failures.
  SAP Kernel Issues: Bugs or issues in the SAP kernel or the underlying software stack can also cause communication problems.
  
  Solutions:
  
  Check Network Connectivity: Verify that the network connection between the SAP application server and the database is stable. Use tools like ping or traceroute to diagnose network issues.
  Database Status: Ensure that the database server is up and running. Check the database logs for any errors or performance issues.
  Review Configuration: Check the configuration settings in the SAP system (e.g., instance profiles, database connection settings) to ensure they are correct.
  Firewall Settings: Review firewall rules and security settings to ensure that they allow communication on the necessary ports.
  Monitor System Resources: 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.
  SAP Notes and Patches: Check for any relevant SAP Notes or patches that address known issues related to communication problems. Apply any necessary updates.
  Restart Services: Sometimes, simply restarting the SAP application server or the database server can resolve transient issues.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed logs and error messages to help diagnose the problem.
  Transaction Codes: Use transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SM37 (Job Monitoring) to gather more information about the error and its context.
  Documentation: Refer to the official SAP documentation for troubleshooting communication issues and best practices for system configuration.
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the UC733 error.