SAP Knowledge Base Article - Public

2872658 - 400 Bad Request error in SAP Analytics Cloud due to SAML Assertion limit

Symptom

The following error occurs in SAP Analytics Cloud (SAC) when logging into a custom IDP:

  • 400 Bad Request

Environment

  • SAP Analytics Cloud hosted on an SAP Data Center (eg. EU1)

Cause

Resolution

  • For more information, see 2732890 - SAML assertion size limit on SAP BTP.
  • This hard limit is coded into the platform and cannot be removed. We recommend that you avoid sending unnecessary user attributes and groups from the Identity Provider (IdP). If a larger assertion is received, the platform returns a '400 Bad Request' response.
  • Additionally, if you are using Microsoft Azure Active Directory (AD) as a Custom SAML IdP, please make sure to limit the amount of SAML group values to less than 150, as Azure AD will truncate (remove) any Groups above this number which can result in unexpected behaviour in SAP Analytics Cloud, particularly if you are using a SAML Role Based Mapping. For more information, see https://docs.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-fed-group-claims

See Also

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Product

SAP Analytics Cloud 1.0