How To Fix TN728 - No response when calling CAR (program possibly canceled)

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 728

• Message text: No response when calling CAR (program possibly canceled)

What causes this issue?

The software for archive management (SAPCAR) did not respond. The
probable cause is usually a canceled program at operating system level.

System Response

The operation was canceled.

How to fix this error?

On the application server, check whether SAPCAR is functioning correctly
Install the latest version of SAPCAR if required.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TN728 - No response when calling CAR (program possibly canceled) ?

  The SAP error message TN728 ("No response when calling CAR (program possibly canceled)") typically occurs in the context of SAP's communication with the Centralized Application Repository (CAR) or when there is an issue with the communication between different SAP systems or components. This error can arise due to various reasons, including network issues, configuration problems, or system performance issues.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the CAR.
  Timeout Settings: The timeout settings for the communication might be too short, causing the request to time out before a response is received.
  System Performance: The system may be under heavy load, causing delays in processing requests.
  Configuration Errors: Incorrect configuration settings in the SAP system or CAR can lead to communication failures.
  Program Termination: The program that was supposed to handle the request may have been terminated or canceled unexpectedly.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the SAP system and the CAR. You can use tools like ping or traceroute to diagnose network issues.
  Increase Timeout Settings: If the timeout settings are too short, consider increasing them in the relevant configuration settings.
  Monitor System Performance: Check the performance of the SAP system and the CAR. If the system is under heavy load, consider optimizing performance or scheduling tasks during off-peak hours.
  Review Configuration Settings: Verify the configuration settings for the communication between the SAP system and CAR. Ensure that all necessary parameters are correctly set.
  Check Logs: Review the application logs and system logs for any additional error messages or warnings that could provide more context about the issue.
  Restart Services: If the issue persists, consider restarting the relevant services or the entire SAP system to clear any temporary issues.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error.
  
  Related Information:
  
  SAP Support: If the issue cannot be resolved with the above steps, consider reaching out to SAP Support for further assistance.
  Documentation: Review the official SAP documentation related to CAR and the specific modules you are using to ensure that all configurations are correct.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the TN728 error in your SAP environment.