Use custom domain for B2C login
Usage Use this setting if - and only if - you enabled custom domains in your redirect URLs for Azure Active Directory B2C (Azure AD B2C) as explained in this article https://learn.microsoft.com/en-us/azure/active-directory-b2c/custom-domain.
Using a custom domain with your application provides a more seamless user experience. From the user's perspective, they remain in your domain during the sign in process rather than redirecting to the Azure AD B2C default domain <tenant-name>.b2clogin.com.
Default value Unchecked / false / empty.
Versions LOGIN+, SYNC, INTRANET
Option path WP Admin > WPO365 > Single Sign-on
Visit the website https://www.wpo365.com/