How To Fix SNC013 - No entry found in client &1 for user &2 and &3

SAP Error Message - Details

• Message type: E = Error

• Message class: SNC - Secure Network Communication, SNC

• Message number: 013

• Message text: No entry found in client &1 for user &2 and &3

What causes this issue?

The system tried to execute a logon using an external identification (an
X.509 certificate, for example).
In addition, a user or "*" was specified in the user field of the logon
screen.
For the current external identification, no entry for the specified user
or default entry could be found in the specified client &V1&.

System Response

The logon is rejected.

How to fix this error?

If access to the SAP system is to be possible with the external
identification used and the specified user, an entry must be created for
it in table USREXTID with type DN.
If the default entry of an external identification is to be accessed
using the specification "*", the corresponding entry must be created
with the serial number 000.

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 SNC013 - No entry found in client &1 for user &2 and &3 ?

  The SAP error message SNC013 indicates that there is no entry found in the specified client for the user in question. This error typically occurs in the context of Secure Network Communications (SNC) when trying to authenticate a user.
  Cause:
  
  Missing User Entry: The user specified in the error message does not exist in the client specified.
  Incorrect Client: The client number may be incorrect, leading to a search in the wrong client.
  SNC Configuration Issues: There may be issues with the SNC configuration, such as incorrect settings in the profile or missing entries in the SNC-related tables.
  User Not Assigned to the Client: The user might not be assigned to the client or may not have the necessary authorizations.
  SNC Name Resolution: The SNC name for the user may not be correctly defined or may not match the expected format.
  
  Solution:
  
  Check User Existence: Verify that the user exists in the specified client. You can do this by using transaction code SU01 to check the user details.
  Verify Client Number: Ensure that you are using the correct client number. You can check the client number in the SAP GUI.
  SNC Configuration: Review the SNC configuration settings in the SAP system. This includes checking the profile parameters related to SNC (e.g., snc/enable, snc/identity/as).
  User Assignment: Make sure that the user is assigned to the correct client and has the necessary authorizations to log in.
  SNC Name: Check the SNC name for the user in the user master record. Ensure it is correctly defined and matches the expected format.
  SNC Tables: Check the relevant SNC tables (like USR02, USR04, etc.) to ensure that the user has the correct entries.
  
  Related Information:
  
  Transaction Codes: 
  
  SU01: User Maintenance
  SNC1: SNC Configuration
  
  
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to SNC and user authentication.
  Documentation: Review the SAP documentation on SNC for detailed configuration steps and troubleshooting tips.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP Basis team or refer to SAP support for further assistance.