How To Fix GW764 - Invalid SNC handle

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 764

• Message text: Invalid SNC handle

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 GW764 - Invalid SNC handle ?

  The SAP error message GW764 "Invalid SNC handle" typically occurs in the context of Secure Network Communications (SNC) when there is an issue with the SNC configuration or the handling of the SNC credentials. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Invalid SNC Configuration: The SNC parameters in the SAP system may not be correctly configured. This includes settings in the instance profile or the SAP GUI.
  Expired or Invalid SNC Credentials: The SNC credentials (like the SNC name or the associated key) may have expired or been incorrectly set up.
  Network Issues: There may be network connectivity issues that prevent the SNC layer from functioning properly.
  SNC Library Issues: The SNC library (e.g., SAP Cryptographic Library) may not be correctly installed or configured on the server or client.
  User Authorization: The user may not have the necessary authorizations to use SNC.
  
  Solutions:
  
  
  Check SNC Configuration:
  
  Verify the SNC parameters in the instance profile (e.g., snc/enable, snc/identity/as, snc/identity/accept, etc.).
  Ensure that the SNC name is correctly configured in the user profile.
  
  
  
  Update or Renew SNC Credentials:
  
  If the SNC credentials are expired, renew them or update the configuration with valid credentials.
  
  
  
  Verify Network Connectivity:
  
  Ensure that there are no network issues that could be affecting the connection. Check firewalls, VPNs, or any other network configurations.
  
  
  
  Check SNC Library Installation:
  
  Ensure that the SAP Cryptographic Library is properly installed and configured on both the server and client machines.
  Make sure that the library version is compatible with your SAP system.
  
  
  
  User Authorizations:
  
  Check the user authorizations to ensure that the user has the necessary permissions to use SNC.
  
  
  
  Restart the SAP System:
  
  Sometimes, a simple restart of the SAP system can resolve transient issues related to SNC.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SNC and the specific error message for any patches or updates that may address the issue.
  Documentation: Review the official SAP documentation on SNC configuration for detailed guidance on setting up and troubleshooting SNC.
  Logs: Check the SAP system logs (transaction SM21) and the developer traces (transaction ST11) for more detailed error messages that may provide additional context.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.