We have scenario where PaaS is available different identity domain and SaaS is different identity domain. The PaaS APEX page is linked to SaaS and when we login to My services Login URL of PaaS we are able to open from SaaS application. The moment we log out from PaaS My services domain we are not able to login and access to PaaS screen from SaaS URL.
It throws authentication failed. Any suggestion for its resolution please.