SAP Knowledge Base Article - Preview

2008296 - Getting 401 Unauthorized error when accessing back-end using SMP and SSO X.509


  • When an OData call is made using X.509 certificate, the application is getting an error 401 Unauthorized error when using SAP Mobile Platform 3.0
  • The Gateway generates the error 404, file not found as well when trying to access the back-end.



  • SSO based on X.509 certificate
  • SMP 3.0.x
  • Authentication is done against the SAP gateway back-end


SAP Mobile Platform 2.3


SMP 3.0 SSO X.509, 404 file not found , KBA , x.509, smp mutual authentication , MOB-ONP , SAP Mobile Platform on Premise , Problem

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