User level Authorization for SSO by using SOAP Sender

Hi,

Scenario : Non-SAP to PI 7.31 using SOAP Sender adapter.

Authentication we need to go for user based level at the receiver system where the information shall be passed from the sender (non-SAP) and also we 're using Single Sign On method for this interface.

Note : Previously we achieved this through WS-RM using SAML certificates, but this adapter doesn't support in PI7.31 single stack since we have option only by using SOAP adapter.

Please suggest how can i achieve this for my current landscape.

Thanks for your help.

Warm regards,

Ram.