How To Fix GW470 - Communication system error; snaclse failed

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 470

• Message text: Communication system error; snaclse 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.

What else can you do?

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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.

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 GW470 - Communication system error; snaclse failed ?

  The SAP error message GW470, which indicates a "Communication system error; snaclse failed," typically relates to issues with the SAP Gateway or the communication layer between SAP systems or between SAP and external systems. This error can arise due to various reasons, including network issues, configuration problems, or issues with the SAP Gateway itself.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP system and the client or between different SAP systems can lead to this error.
  Configuration Errors: Incorrect configuration settings in the SAP Gateway or the RFC (Remote Function Call) destination can cause communication failures.
  SAP Gateway Issues: The SAP Gateway service may not be running properly or may have encountered an internal error.
  Authorization Issues: Insufficient authorizations for the user or service trying to establish the connection can also lead to this error.
  System Load: High system load or resource constraints on the server can affect the performance of the SAP Gateway.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues. You can use tools like ping or traceroute to check connectivity between systems.
  Review Configuration: Verify the configuration of the SAP Gateway and the RFC destinations. Ensure that the settings are correct and that the target system is reachable.
  Restart SAP Gateway: If the SAP Gateway service is not functioning correctly, try restarting it. You can do this through transaction SMGW in the SAP GUI.
  Check Logs: Review the SAP Gateway logs for any additional error messages or clues. You can find logs in transaction SMGW under the "Log" menu.
  Check Authorizations: Ensure that the user or service account has the necessary authorizations to perform the required actions.
  Monitor System Performance: Check the system performance and resource usage. If the system is under heavy load, consider optimizing performance or scaling resources.
  Update SAP: Ensure that your SAP system is up to date with the latest patches and updates, as some issues may be resolved in newer versions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to GW470 for specific fixes or recommendations. You can search for relevant notes in the SAP Support Portal.
  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 the official SAP documentation for the Gateway and communication protocols for more detailed troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.