How To Fix GW730 - Not allowed to start non-SNC connections

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 730

• Message text: Not allowed to start non-SNC connections

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GW730 - Not allowed to start non-SNC connections ?

  The SAP error message GW730: Not allowed to start non-SNC connections typically occurs when there is an attempt to establish a connection to an SAP system that is configured to require Secure Network Communications (SNC), but the connection being attempted is not using SNC.
  Cause:
  
  SNC Configuration: The SAP system is configured to enforce SNC for all connections, but the client or application trying to connect is not using SNC.
  Connection Parameters: The connection parameters may not be set correctly to use SNC.
  Client Configuration: The client (e.g., SAP GUI, third-party application) may not be configured to support or use SNC.
  Network Security Policies: Organizational policies may require the use of SNC for all SAP connections, leading to this error if a non-SNC connection is attempted.
  
  Solution:
  
  
  Enable SNC on the Client: Ensure that the client application is configured to use SNC. This may involve:
  
  Installing the necessary SNC libraries.
  Configuring the client to use SNC by setting the appropriate parameters (e.g., SNC name, SNC library path).
  
  
  
  Check SAP GUI Settings: If using SAP GUI, ensure that the connection settings are configured to use SNC:
  
  Go to the SAP Logon pad.
  Right-click on the connection and select "Properties."
  Ensure that the "Use Secure Network Communication" option is checked.
  
  
  
  Review SAP System Configuration: If you have access to the SAP system configuration:
  
  Check the profile parameters related to SNC (e.g., snc/enable, snc/identity/as).
  Ensure that the system is correctly set up to accept SNC connections.
  
  
  
  Consult Documentation: Refer to the SAP documentation for detailed steps on configuring SNC for both the server and client sides.
  
  
  Contact System Administrator: If you are not able to resolve the issue, contact your SAP Basis administrator or IT support team for assistance. They can help verify the configuration and ensure that the necessary components are in place.
  
  
  Related Information:
  
  SNC Overview: Secure Network Communications (SNC) is a security protocol that provides encryption and authentication for SAP connections.
  SNC Libraries: Ensure that the appropriate SNC libraries (e.g., SAP Cryptographic Library) are installed on the client machine.
  SAP Notes: Check SAP Notes for any specific patches or updates related to SNC and the error GW730.
  Network Security Policies: Review your organization's network security policies to ensure compliance with SNC requirements.
  
  By following these steps, you should be able to resolve the GW730 error and establish a successful connection to the SAP system using SNC.