How To Fix 00145 - This SSO ticket has already been used (security protection)

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 145

• Message text: This SSO ticket has already been used (security protection)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00145 - This SSO ticket has already been used (security protection) ?

  The SAP error message "00145: This SSO ticket has already been used (security protection)" typically occurs in the context of Single Sign-On (SSO) authentication. This error indicates that the SSO ticket being used for authentication has already been consumed, meaning it cannot be reused for another session. This is a security feature designed to prevent replay attacks.
  Causes:
  
  Single Use Ticket: SSO tickets are designed to be single-use for security reasons. If a ticket is used once, it cannot be reused.
  Session Timeout: If the session associated with the ticket has expired, the ticket may be considered invalid.
  Multiple Requests: If multiple requests are made using the same ticket, the first request will consume the ticket, leading to this error for subsequent requests.
  
  Configuration Issues: Misconfigurations in the SSO setup or the underlying authentication mechanism can lead to this error.
  Network Issues: Intermittent network issues may cause a ticket to be sent multiple times, leading to