How To Fix SAML2015 - Defederation of format '&1' is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SAML2 - SAML2 Nachrichten

• Message number: 015

• Message text: Defederation of format '&1' is not supported

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 SAML2015 - Defederation of format '&1' is not supported ?

  The SAP error message SAML2015 indicates that there is an issue with the defederation process in the context of SAML (Security Assertion Markup Language) authentication. Specifically, the message states that the defederation of a certain format is not supported. This typically occurs when there is an attempt to process a SAML assertion or response that is not in a recognized or supported format.
  
  Cause:
  
  Unsupported Format: The SAML assertion or response being processed is in a format that the SAP system does not support. This could be due to a mismatch in the expected SAML version or profile.
  
  Configuration Issues: There may be misconfigurations in the SAML settings, such as incorrect endpoints, certificates, or metadata.
  Version Mismatch: The SAML version used by the Identity Provider (IdP) may not be compatible with what the SAP system expects.
  Incorrect Assertion: The SAML assertion may be malformed or missing required elements.
  
  
  Solution:
  
  
  Check SAML Configuration: Review the SAML configuration in