I have 3 Salesforce orgs (IDP, SP1 and SP2) and have set up SSO where IDP is my Identity-Provider and SP1 and SP2 are 2 Service-Providers. Using SP1-initiated SSO login, the user gets authenticated in IDP org and returns SAML assertion in response to SP1.
Now my requirement is when the user is redirected to SP1 from IDP after authentication, I want to fetch some case related data from SP2 and display in SP1 without making the user login into SP2.
Can anyone help me understand how to achieve this?