This blog post shows how to configure custom MFA implementation to Azure B2C with custom policies. Azure MFA can be easily configured to the custom policies but sometimes custom implementation is required.
This blob post describes one example how automate Azure B2C custom policy deployment to different environments.
How federated sign in with OpenIdConnect based IDP is configured by using Identity Experience Framework (custom policy)
This blog post shows how to configure an environment where users can login to Azure Web application using B2B (business) accounts or B2C (consumer) accounts.