How To Fix GW725 - SNC not supported for protocol

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 725

• Message text: SNC not supported for protocol

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GW725 - SNC not supported for protocol ?

  The SAP error message "GW725 SNC not supported for protocol" typically indicates an issue related to Secure Network Communications (SNC) when trying to establish a connection to an SAP system. This error can occur in various scenarios, such as when using SAP GUI or when connecting to an SAP backend system.
  Cause:
  
  SNC Configuration: The error often arises when the SNC is not properly configured on either the client or server side. This could be due to missing or incorrect SNC parameters in the SAP profile or in the client configuration.
  Protocol Mismatch: The error may also indicate that the protocol being used does not support SNC. For example, if the connection is being attempted over a protocol that does not support SNC, this error will be triggered.
  SNC Library Issues: If the required SNC libraries are not installed or are not compatible with the version of SAP you are using, this can lead to the error.
  Client-Side Configuration: The client (e.g., SAP GUI) may not be configured to use SNC, or the SNC settings may not be correctly specified.
  
  Solution:
  
  
  Check SNC Configuration:
  
  Ensure that SNC is properly configured on both the SAP server and the client. This includes checking the snc/enable parameter in the instance profile and ensuring that the SNC name is correctly set.
  Verify that the SNC parameters in the SAP GUI configuration are correct. This includes the SNC name and the path to the SNC library.
  
  
  
  Verify Protocol Support:
  
  Ensure that the protocol you are using supports SNC. For example, if you are using HTTP or HTTPS, make sure that the configuration allows for SNC connections.
  If you are using a specific connection type (like RFC), ensure that it is configured to support SNC.
  
  
  
  Install/Update SNC Libraries:
  
  Make sure that the required SNC libraries are installed on the client machine. If they are installed, check for compatibility with your SAP version and update them if necessary.
  
  
  
  Client Configuration:
  
  In the SAP GUI, go to the options and check the settings under "Secure Network Communications." Ensure that the SNC settings are correctly configured.
  If you are using a third-party tool or custom application, ensure that it is configured to support SNC.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  
  Related Information:
  
  SNC Documentation: Refer to the official SAP documentation on SNC for detailed configuration steps and requirements.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting and finding solutions shared by other users who have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to diagnose and resolve the "GW725 SNC not supported for protocol" error in your SAP environment.