How To Fix GW736 - Duplicate conversation ID detected; connection terminated

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 736

• Message text: Duplicate conversation ID detected; connection terminated

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 GW736 - Duplicate conversation ID detected; connection terminated ?

  The SAP error message "GW736 Duplicate conversation ID detected; connection terminated" typically occurs in the context of SAP Gateway or when using SAP's RFC (Remote Function Call) communication. This error indicates that there is a duplicate conversation ID being used in the communication between the SAP system and a client or another system, which leads to the termination of the connection.
  Causes:
  
  Duplicate Conversation ID: The most common cause is that the same conversation ID is being reused in a way that is not allowed. This can happen if multiple requests are sent simultaneously using the same ID.
  Network Issues: Network interruptions or issues can lead to the same conversation ID being reused unintentionally.
  Client Application Bugs: If the client application (e.g., a custom program or third-party tool) is not managing conversation IDs properly, it may lead to duplicates.
  Session Management Issues: Problems with session management in the SAP system or the client application can also cause this error.
  
  Solutions:
  
  Check Client Application: Review the client application code to ensure that it is generating unique conversation IDs for each request. If using a framework or library, ensure it is up to date and properly configured.
  Session Handling: Ensure that the session handling in the application is correctly implemented. Avoid reusing conversation IDs across different sessions.
  Network Stability: Investigate network stability and ensure that there are no interruptions that could lead to duplicate requests being sent.
  SAP Notes: Check for any relevant SAP Notes or patches that may address this issue. SAP frequently releases updates that can resolve known issues.
  Monitoring and Logging: Implement logging in the client application to monitor the conversation IDs being generated and used. This can help identify patterns or specific scenarios that lead to duplicates.
  Increase Timeout Settings: If applicable, consider increasing the timeout settings for the connections to allow for more time before a conversation ID is reused.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is responsible for handling communication between SAP systems and external applications. Understanding how it manages sessions and conversation IDs can help in troubleshooting.
  RFC Communication: Familiarize yourself with how RFC works in SAP, including the concepts of connection management and session handling.
  SAP Community and Forums: Engaging with the SAP community through forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance, providing them with detailed logs and context around the error occurrence.