How To Fix SAML2080 - Authentication failed: Wrong input parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 080

• Message text: Authentication failed: Wrong input parameter

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 SAML2080 - Authentication failed: Wrong input parameter ?

  The SAP error message SAML2080: Authentication failed: Wrong input parameter typically occurs in the context of Single Sign-On (SSO) when using SAML (Security Assertion Markup Language) for authentication. This error indicates that there is an issue with the parameters being sent during the authentication process.
  Causes:
  
  Incorrect Configuration: The SAML configuration in the Identity Provider (IdP) or Service Provider (SP) may be incorrect. This includes issues with the SAML assertion, certificates, or metadata.
  Invalid Credentials: The user may be providing incorrect credentials or the credentials may not be recognized by the IdP.
  Parameter Mismatch: The parameters sent in the SAML request may not match what the IdP expects. This could include missing or malformed attributes.
  Expired or Invalid Tokens: If the SAML assertion or token has expired or is invalid, authentication will fail.
  Network Issues: Connectivity issues between the SAP system and the IdP can also lead to authentication failures.
  
  Solutions:
  
  Check Configuration: Review the SAML configuration settings in both the IdP and SP. Ensure that the entity IDs, endpoints, and certificates are correctly configured.
  Validate User Credentials: Ensure that the user is entering the correct credentials and that the user account is active in the IdP.
  Review SAML Request/Response: Use tools like SAML Tracer or browser developer tools to inspect the SAML request and response. Look for any discrepancies in the parameters being sent.
  Check Token Validity: Ensure that the SAML assertion is valid and has not expired. If necessary, re-authenticate to obtain a new token.
  Consult Logs: Check the logs on both the SAP system and the IdP for more detailed error messages that can provide insight into the failure.
  Network Connectivity: Ensure that there are no network issues preventing communication between the SAP system and the IdP.
  
  Related Information:
  
  SAML Documentation: Familiarize yourself with SAML specifications and how they apply to your specific IdP and SP.
  SAP Notes: Check SAP Notes for any known issues or patches related to SAML authentication.
  IdP Documentation: Review the documentation for your specific IdP (e.g., ADFS, Okta, Azure AD) for troubleshooting SAML authentication issues.
  Testing Tools: Use SAML testing tools to simulate authentication requests and responses to identify issues in the SAML flow.
  
  By following these steps, you should be able to diagnose and resolve the SAML2080 error in your SAP environment.