How To Fix GW452 - Communication system error; tp_start function failed

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 452

• Message text: Communication system error; tp_start function failed

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 GW452 - Communication system error; tp_start function failed ?

  The SAP error message GW452, which indicates a "Communication system error; tp_start function failed," typically arises during the execution of transport operations in the SAP system. This error can occur for various reasons, and understanding the cause is crucial for resolving it. Below are some common causes, potential solutions, and related information.
  Causes:
  
  Transport Directory Issues: Problems with the transport directory (e.g., missing or corrupted files) can lead to this error.
  Network Issues: Communication problems between the SAP system and the transport directory or between different SAP systems can trigger this error.
  Authorization Issues: Insufficient permissions for the user executing the transport can cause failures.
  Configuration Errors: Incorrect configuration of the transport management system (TMS) can lead to communication errors.
  System Resource Limitations: Insufficient system resources (CPU, memory, etc.) can cause the transport process to fail.
  Background Job Issues: If the transport is being executed as a background job, issues with the job itself can lead to this error.
  
  Solutions:
  
  
  Check Transport Directory:
  
  Verify that the transport directory is correctly set up and that all necessary files are present.
  Use transaction SE01 to check the transport logs for any specific errors.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues between the SAP system and the transport directory.
  Test connectivity using tools like ping or traceroute.
  
  
  
  User Authorizations:
  
  Check the authorizations of the user executing the transport. Ensure they have the necessary permissions to perform transport operations.
  
  
  
  TMS Configuration:
  
  Review the TMS configuration using transaction STMS. Ensure that all systems are correctly configured and that the transport routes are valid.
  
  
  
  System Resources:
  
  Monitor system resources to ensure that there are no bottlenecks. Check for CPU, memory, and disk space usage.
  
  
  
  Review Background Jobs:
  
  If the transport is running as a background job, check the job logs for any errors. Use transaction SM37 to view job logs.
  
  
  
  Restart Transport Process:
  
  Sometimes, simply restarting the transport process can resolve transient issues.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE01: Transport Organizer
  STMS: Transport Management System
  SM37: Job Monitoring
  SCC4: Client Administration
  
  
  
  SAP Notes: Search for SAP Notes related to GW452 or transport issues in the SAP Support Portal.
  
  
  Logs: Check the transport logs for more detailed error messages that can provide additional context for troubleshooting.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.