How To Fix SAML2045 - Message &1 is not signed

SAML2045 - Overview

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 045

• Message text: Message &1 is not signed

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 SAML2045 - Message &1 is not signed ?

  The SAP error message SAML2045, which states "Message &1 is not signed," typically occurs in the context of Single Sign-On (SSO) configurations using SAML (Security Assertion Markup Language). This error indicates that the SAML assertion or message being processed is not signed, which is a requirement for the security and integrity of the SSO process.
  
  Cause:
  
  Unsigned SAML Assertion: The SAML assertion being sent from the Identity Provider (IdP) to the Service Provider (SP) is not signed. This can happen if the IdP is not configured to sign the assertions or if there is a misconfiguration in the IdP settings.
  
  Configuration Issues: There may be issues in the configuration of the SAML settings in either the IdP or the SP, leading to the assertion not being signed.
  Certificate Issues: The signing certificate used by the IdP may not be correctly configured or may not match the expected certificate on the SP side.
  
  
  Solution:
  
  Check IdP Configuration: