Hi @julien deroche ,
Thanks for reaching out.
Yes, it is possible to redirect the authentication to Workspace One access IDP instead of Azure AD. You can achieve this by configuring the Home Realm Discovery (HRD) policy in Azure AD. HRD policy is used to determine which identity provider (IDP) should be used to authenticate a user based on the user's email domain.
Once users enter their UPN, if they belong to a federated domain, they will be redirected to the sign-in page of the Identity Provider (IdP) associated with that domain.
Reference : https://learn.microsoft.com/en-us/azure/active-directory/manage-apps/home-realm-discovery-policy
Hope this will help.
Thanks,
Shweta
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