Guidance for Microsoft Entra External ID — the unified customer identity and access management (CIAM) and external collaboration platform that replaces Azure AD B2C (for new tenants) and consolidates B2B guest scenarios. Covers external tenant creation, user flows (sign-up/sign-in, password reset), custom branding, identity providers (Google, Facebook, Apple, SAML/OIDC), email OTP and passkey support, custom attributes, custom authentication extensions (replaces B2C custom policies), API connectors, Conditional Access for external users, self-service sign-up in workforce tenants, B2B collaboration vs B2B direct connect, cross-tenant access settings, and migration considerations from Azure AD B2C. WHEN: Entra External ID, CIAM Microsoft, customer identity, replace Azure AD B2C, B2B guest user, B2B direct connect, cross-tenant access settings, external tenant, self-service sign-up, custom authentication extension, social identity provider, partner collaboration Entra, external user lifecycle, guest user expiration. DO NOT USE for workforce identity (use entra-id), workforce governance (use entra-id-governance), or workforce CA (use conditional-access-mfa).
How to install entra-external-id?
vinayaklatthe/microsoft-security-skills/entra-external-id
$npx -y skills add vinayaklatthe/microsoft-security-skills --skill entra-external-idInstalls into the current project.
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Run `npx skills use "https://github.com/vinayaklatthe/microsoft-security-skills" --skill "vinayaklatthe/microsoft-security-skills/entra-external-id"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/vinayaklatthe/microsoft-security-skills" that are relevant to the current task. Run `npx skills add "https://github.com/vinayaklatthe/microsoft-security-skills"` and select the relevant skills, then follow their instructions.
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