Hi @Geoffrey van Wyk · Thank you for reaching out.
You can sign into https://myapplications.microsoft.com portal using B2C local user account and will be presented with a grid of applications but when you click on the application icon, it will not redirect you to authenticate with B2C user flow or custom policy. My Apps portal can only perform IDP initiated sign-on for the applications federated directly with Azure AD and not with Azure AD B2C via user flow or custom policy.
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