How To Fix SPN026 - Kerberos token verify error:

SPN026 - Overview

• Message type: E = Error

• Message class: SPN - SPnego

• Message number: 026

• Message text: Kerberos token verify error:

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SPN026 - Kerberos token verify error: ?

  The SAP error message SPN026, which indicates a "Kerberos token verify error," typically arises in environments where SAP systems are configured to use Kerberos authentication for Single Sign-On (SSO). This error can occur due to various reasons related to Kerberos configuration, service principal names (SPNs), or issues with the Key Distribution Center (KDC).
  Causes of SPN026 Error
  
  
  Incorrect SPN Configuration: The Service Principal Name (SPN) for the SAP service may not be correctly registered in the Active Directory (AD). Each service that uses Kerberos authentication must have a unique SPN.
  
  
  Kerberos Ticket Issues: The Kerberos ticket may be expired, invalid, or not properly issued for the user or service account.
  
  
  Clock Skew: Kerberos is sensitive to time differences between the client and server. If the system clocks are not synchronized, authentication may fail.
  
  
  DNS Issues: Kerberos relies heavily on DNS. If there are issues with DNS resolution, it can lead to authentication failures.
  
  
  Service Account Permissions: