How To Fix SAML2023 - Attribute '&1' of element '&2' is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 023

• Message text: Attribute '&1' of element '&2' is invalid

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAML2023 - Attribute '&1' of element '&2' is invalid ?

  The SAP error message SAML2023 indicates that there is an issue with the attributes in a SAML (Security Assertion Markup Language) assertion. Specifically, the error message states that the attribute &1 of element &2 is invalid. This typically occurs during the SAML authentication process when the attributes being passed do not meet the expected criteria or format.
  Cause
  The error can be caused by several factors, including:
  
  
  Invalid Attribute Format: The attribute value may not conform to the expected format or data type. For example, if an attribute is expected to be an email address but is provided as a plain string, it could trigger this error.
  
  
  Missing Required Attributes: If the SAML assertion is missing required attributes that are necessary for the authentication or authorization process, it can lead to this error.
  
  
  Incorrect Configuration: The SAML configuration in the Identity Provider (IdP) or Service Provider (SP) may be incorrect. This includes mismatched attribute names or incorrect mappings.
  
  
  Schema Validation Failure: The SAML assertion may not conform to the expected schema, leading to validation errors.
  
  
  Encoding Issues: If the attributes are not properly encoded or contain invalid characters, this can also result in an error.
  
  
  Solution
  To resolve the SAML2023 error, you can take the following steps:
  
  
  Check Attribute Configuration: Review the SAML attribute configuration in both the IdP and SP. Ensure that the attribute names and values are correctly defined and match what is expected.
  
  
  Validate Attribute Values: Ensure that the values being sent in the SAML assertion are valid and conform to the expected formats. For example, check for valid email formats, string lengths, and data types.
  
  
  Review Required Attributes: Make sure that all required attributes are being sent in the SAML assertion. Consult the documentation for the application or service you are integrating with to identify which attributes are mandatory.
  
  
  Examine SAML Assertion: Use tools like SAML Tracer (a browser extension) to capture and analyze the SAML assertion being sent. This can help you identify any discrepancies or issues with the attributes.
  
  
  Check Logs: Review the logs on both the IdP and SP sides for any additional error messages or warnings that may provide more context about the issue.
  
  
  Consult Documentation: Refer to the SAP documentation or the documentation for the IdP you are using to ensure that you are following the correct procedures for SAML configuration.
  
  
  Testing: After making changes, perform tests to ensure that the SAML authentication process works as expected without triggering the error.
  
  
  Related Information
  
  SAML Assertions: Understanding how SAML assertions work and the structure of the assertions can help in troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide guidance on SAML configuration.
  Identity Provider Documentation: Review the documentation for the IdP you are using (e.g., ADFS, Okta, etc.) for specific configuration details related to attribute mappings.
  
  By following these steps, you should be able to identify and resolve the cause of the SAML2023 error in your SAP environment.