Hi,
I have 5+ years' experience in Single Sign on technology.
I have experience in SSO integration with 3rd party paid SSO solution like OKTA,Azure SSO,Miniorange and Open source solutions like Simplesamlphp,Keycloak,Gluu.
I can definitely help you with Integrating okta and apply policy to prompt MFA, will also fetch all required attributes.
Let me know if we can discuss the user login flow and number of applications you have in total for integration.
Regards,
Umang