How To Fix TSYS005 - Communication error with system &1

SAP Error Message - Details

• Message type: E = Error

• Message class: TSYS - System Comparison: Messages

• Message number: 005

• Message text: Communication error with system &1

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 TSYS005 - Communication error with system &1 ?

  The SAP error message TSYS005 indicates a communication error with a specified system (denoted as &1). This error typically arises in scenarios where there is an issue with the connection between SAP systems or between an SAP system and an external system. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network connection, such as downtime, misconfigured firewalls, or network congestion.
  Configuration Errors: Incorrect settings in the RFC (Remote Function Call) destination or in the logical system configuration.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the connection may not have the necessary permissions.
  Transport Layer Issues: Problems with the transport layer, such as incorrect transport protocol settings (e.g., HTTP, TCP/IP).
  SAP Gateway Issues: The SAP Gateway might not be running or configured correctly.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable. You can use tools like ping or traceroute to diagnose connectivity issues.
  Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that the connection parameters (like host, service, and system number) are correct.
  Check System Status: Verify that the target system is up and running. You can check the system logs or use transaction SM51 to see the status of application servers.
  Review Authorizations: Ensure that the user credentials used for the connection have the necessary authorizations to access the target system.
  Check Gateway Configuration: Ensure that the SAP Gateway is running and properly configured. You can check the gateway logs for any errors.
  Review Logs: Check the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages that might provide more context.
  Test Connection: Use the "Test Connection" feature in transaction SM59 to verify that the RFC destination can be reached successfully.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to TSYS005.
  Documentation: Review the SAP documentation for RFC connections and troubleshooting communication issues.
  Community Forums: Check SAP Community forums for discussions related to TSYS005, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or contact SAP support for further assistance.