How To Fix SNC014 - Logon with external identification: Invalid type (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: SNC - Secure Network Communication, SNC

• Message number: 014

• Message text: Logon with external identification: Invalid type (&1)

What causes this issue?

The external identification type &V1& transmitted by the external
server program is invalid.
Currently, only type "1" (base64 coded X.509 certificate) is allowed.

System Response

The logon is refused.

How to fix this error?

If the external program is an SAP product (Internet Transaction Server
(ITS), for example), contact your helpdesk.
In the case of other products, contact the manufacturer
of the product.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SNC014 - Logon with external identification: Invalid type (&1) ?

  The SAP error message SNC014 indicates that there is an issue with the logon process using external identification, specifically that the type of external identification provided is invalid. This error typically occurs in environments where Secure Network Communications (SNC) is configured, and it is often related to the use of Single Sign-On (SSO) mechanisms.
  Cause:
  
  Invalid External Identification Type: The error suggests that the type of external identification (e.g., user ID, certificate, etc.) being used does not match the expected format or type defined in the system.
  Configuration Issues: There may be misconfigurations in the SNC settings or the external authentication method being used.
  User Mapping Issues: The user may not be correctly mapped to the external identification in the SAP system.
  SNC Library Issues: The SNC library being used may not be compatible or properly configured.
  
  Solution:
  
  Check External Identification: Verify that the external identification being used is correct and matches the expected format. Ensure that the user ID or certificate is valid.
  Review SNC Configuration: 
  
  Go to transaction SNC0 and check the SNC parameters.
  Ensure that the SNC library is correctly configured and that the correct version is being used.
  
  
  User Mapping: 
  
  Check the user mapping in the SAP system to ensure that the external user is correctly mapped to an SAP user.
  Use transaction SU01 to verify the user settings.
  
  
  SNC Library: Ensure that the correct SNC library is installed and configured on the application server. Check the SAP Note related to the specific SNC library you are using for any known issues or updates.
  Check SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Test with Different User: If possible, test the logon with a different user to see if the issue is user-specific or system-wide.
  
  Related Information:
  
  SNC Configuration: Review the SAP documentation on configuring SNC and SSO for your specific version of SAP.
  SAP Notes: Search the SAP Support Portal for notes related to SNC014 or general SNC issues.
  Logs: Check the system logs (transaction SM21) for any additional error messages that may provide more context about the issue.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.
  
  By following these steps, you should be able to identify and resolve the cause of the SNC014 error in your SAP environment.