How To Fix GW458 - Communication system error; send failed

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 458

• Message text: Communication system error; send 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?

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 GW458 - Communication system error; send failed ?

  The SAP error message GW458, which indicates a "Communication system error; send failed," typically arises in the context of SAP Gateway or when there are issues with communication between SAP systems or between SAP and external systems. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network connection, such as firewalls blocking traffic, DNS resolution issues, or network outages.
  Configuration Errors: Incorrect settings in the SAP Gateway or RFC destination configuration.
  System Overload: High load on the SAP system or the server hosting the SAP Gateway, leading to timeouts or failures in processing requests.
  Authorization Issues: Lack of proper authorizations for the user or service trying to establish the communication.
  Service Unavailability: The target service or system may be down or not reachable.
  Protocol Mismatch: Issues with the communication protocol being used (e.g., HTTP, HTTPS).
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable and that there are no firewalls or security settings blocking the communication.
  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.
  Monitor System Load: Check the performance of the SAP system and the server. If the system is overloaded, consider optimizing performance or scaling resources.
  Check Authorizations: Ensure that the user or service account has the necessary authorizations to perform the communication.
  Service Status: Verify that the target service or system is up and running. You can use transaction codes like SM21 (System Log) or SM37 (Job Monitoring) to check for any related issues.
  Review Logs: Check the SAP Gateway logs (transaction code /IWFND/ERROR_LOG) for more detailed error messages that can provide insights into the issue.
  Test Communication: Use transaction code SM59 to test the RFC connection to ensure that it is working correctly.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to GW458. SAP Notes often provide patches or workarounds for known issues.
  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 to ensure compliance with best practices.
  
  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.