How To Fix SNC012 - Exception &1 when getting external ID &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SNC - Secure Network Communication, SNC

• Message number: 012

• Message text: Exception &1 when getting external ID &2

What causes this issue?

A logon is to carried out via a server's SNC-secured connection using
an external identification (an X.509 certificate, for example).
The requests of the external identification with the server using RFC
were unsuccessful.
The exception that occurred is logged.
Exception 1 : The server does not have an external identification
2 : The server reports an internal error
3 : Communication error
4 : System failure

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The system message is also displayed, if it is available, with
exceptions 3 and 4.

System Response

The logon is terminated.

How to fix this error?

Ensure that the server that executes the logon
(Internet Transaction Server, for example)
supports logons using external identification.
If this is the case, check the error messages that are there.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SNC012 - Exception &1 when getting external ID &2 ?

  The SAP error message SNC012, which states "Exception &1 when getting external ID &2," typically relates to issues with Secure Network Communications (SNC) in SAP systems. This error can occur when there are problems with the configuration of SNC or when the system is unable to retrieve the external ID for a user or service.
  Causes:
  
  SNC Configuration Issues: The SNC settings in the SAP system may not be correctly configured. This includes issues with the SNC library or parameters.
  Missing or Incorrect External ID: The external ID that the system is trying to retrieve may not exist or may be incorrectly defined in the user profile or in the SNC configuration.
  Network Issues: There may be network connectivity issues that prevent the system from accessing the necessary resources to retrieve the external ID.
  Authorization Problems: The user or service may not have the necessary authorizations to access the external ID.
  SNC Library Issues: The SNC library (e.g., SAP Cryptographic Library) may not be installed correctly or may be outdated.
  
  Solutions:
  
  
  Check SNC Configuration:
  
  Verify the SNC parameters in the SAP system (e.g., snc/enable, snc/identity, snc/lib).
  Ensure that the SNC library is correctly installed and configured.
  
  
  
  Validate External ID:
  
  Check the user profiles in the SAP system to ensure that the external ID is correctly defined.
  Ensure that the external ID matches the expected format and is correctly mapped to the user.
  
  
  
  Network Connectivity:
  
  Test the network connection to ensure that there are no issues preventing access to the external ID.
  Check firewall settings and network configurations that may block access.
  
  
  
  Authorization Checks:
  
  Review the authorizations for the user or service trying to access the external ID.
  Ensure that the necessary roles and permissions are assigned.
  
  
  
  Update or Reinstall SNC Library:
  
  If the SNC library is outdated or improperly installed, consider updating or reinstalling it.
  Ensure that the correct version of the library is being used for your SAP system.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error.
  
  
  
  Related Information:
  
  SNC Documentation: Review the official SAP documentation on Secure Network Communications for detailed configuration steps and best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed logs and error messages for further analysis.
  
  By following these steps, you should be able to diagnose and resolve the SNC012 error in your SAP system.