How To Fix GW771 - SNC call invalid due to current connection state

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 771

• Message text: SNC call invalid due to current connection state

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 GW771 - SNC call invalid due to current connection state ?

  The SAP error message GW771 indicates that there is an issue with the Secure Network Communications (SNC) call due to the current connection state. This error typically arises in scenarios where there is a problem with the SNC configuration or the connection state between the SAP system and the SNC library.
  Causes:
  
  SNC Configuration Issues: The SNC parameters in the SAP system may not be correctly configured. This includes settings in the instance profile or the SAP GUI.
  Network Issues: There may be network connectivity problems that prevent the SNC call from being established.
  SNC Library Issues: The SNC library (e.g., SAP Cryptographic Library) may not be properly installed or configured on the server.
  Session State: The session may be in an invalid state, possibly due to timeouts or disconnections.
  User Authorization: The user may not have the necessary authorizations to perform SNC calls.
  
  Solutions:
  
  
  Check SNC Configuration:
  
  Verify the SNC parameters in the instance profile (e.g., snc/enable, snc/identity/as, snc/partnername).
  Ensure that the SNC settings in the SAP GUI are correctly configured.
  
  
  
  Review Network Connectivity:
  
  Check the network connection between the SAP system and the SNC library.
  Ensure that there are no firewalls or network policies blocking the connection.
  
  
  
  Validate SNC Library Installation:
  
  Ensure that the SAP Cryptographic Library is installed and configured correctly on the server.
  Check for any updates or patches that may need to be applied to the library.
  
  
  
  Session Management:
  
  If the session is in an invalid state, try logging out and logging back in to reset the session.
  Monitor for any timeouts or disconnections that may be affecting the session.
  
  
  
  User Authorizations:
  
  Verify that the user has the necessary authorizations to perform SNC calls.
  Check the user roles and profiles to ensure they are correctly assigned.
  
  
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to the GW771 error.
  SNC Documentation: Review the official SAP documentation on SNC configuration and troubleshooting.
  Logs and Traces: Analyze the system logs (e.g., dev_w0, dev_rfc) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after following these steps, it may be beneficial to engage SAP support for further assistance.