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

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.