How To Fix 00640 - Internal SAP gateway error

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 640

• Message text: Internal SAP gateway error

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 00640 - Internal SAP gateway error ?

  The SAP error message "00640 Internal SAP gateway error" typically indicates a problem with the SAP Gateway, which is responsible for communication between the SAP system and external applications or services. This error can arise from various issues, including configuration problems, network issues, or problems with the SAP system itself.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP system and the client or between different SAP systems.
  Configuration Errors: Incorrect settings in the SAP Gateway configuration, such as incorrect RFC destinations or gateway parameters.
  Resource Limitations: Insufficient system resources (like memory or CPU) on the SAP server, leading to gateway failures.
  System Bugs: Software bugs or inconsistencies in the SAP system that may cause the gateway to malfunction.
  Transport Layer Issues: Problems with the transport layer, such as issues with the underlying TCP/IP stack.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection is stable and that there are no firewalls or network policies blocking the communication.
  Review Gateway Configuration: Verify the configuration settings in the SAP Gateway. Check the transaction codes SMGW (Gateway Monitor) and SM51 (List of SAP Servers) for any anomalies.
  Monitor System Resources: Use transaction SM04 to check for active users and resource usage. If the system is under heavy load, consider optimizing performance or increasing resources.
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address known issues related to the gateway error.
  Restart Gateway Services: Sometimes, simply restarting the SAP Gateway service can resolve transient issues.
  Review Logs: Check the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages or clues that could help diagnose the issue.
  
  Related Information:
  
  Transaction Codes:
  
  SMGW: Gateway Monitor
  SM51: List of SAP Servers
  SM21: System Log
  ST11: Developer Traces
  
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, providing them with detailed logs and error messages.
  Documentation: Review the official SAP documentation for the specific version of your SAP system for any additional troubleshooting steps or configuration guidelines.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the "00640 Internal SAP gateway error."