How To Fix SUSR_CERT054 - Syntax error: Logon attribute &1 must not occur in the subject filter

SUSR_CERT054 - Overview

• Message type: E = Error

• Message class: SUSR_CERT - User Certificates Administration

• Message number: 054

• Message text: Syntax error: Logon attribute &1 must not occur in the subject filter

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 SUSR_CERT054 - Syntax error: Logon attribute &1 must not occur in the subject filter ?

  The SAP error message SUSR_CERT054 indicates a syntax error related to the logon attribute in the subject filter of a digital certificate. This error typically occurs when there is a misconfiguration in the settings for user authentication, particularly when using X.509 certificates for Single Sign-On (SSO) or other authentication mechanisms.
  
  Cause:
  The error message suggests that a specific logon attribute (denoted as &1 in the error message) is incorrectly defined in the subject filter of the certificate. This can happen due to:
  
  Incorrect Configuration: The subject filter in the certificate configuration may include attributes that are not allowed or are incorrectly formatted.
  Missing Attributes: Required attributes may be missing from the subject filter.
  Version Mismatch: There may be a mismatch between the expected attributes in the SAP system and those provided by the certificate.
  
  
  Solution:
  To resolve the SUSR_CERT054 error, you can follow these steps:
  
  
  Check the Subject Filter Configuration:
  
  Go to the transaction code SICF (HTTP Service Hierarchy