Setup Auth

Plugin check: Run node "${CLAUDE_PLUGIN_ROOT}/scripts/check-version.js" — if it outputs a message, show it to the user before proceeding.

Set Up Authentication & Authorization

Configure authentication (login/logout) and role-based authorization for a Power Pages code site. This skill supports multiple identity providers -- Microsoft Entra ID, Entra External ID (for customer-facing apps with self-service sign-up), OpenID Connect (generic), SAML2, WS-Federation, local authentication (username/password), Microsoft Account, Facebook, and Google. It also supports optional features including invitation-based registration and Terms & Conditions acceptance. Power Pages built-in 2FA is intentionally not scaffolded because the SendCode/VerifyCode pages are server-rendered and cannot be integrated into a SPA experience — use IdP-level MFA instead. It creates an auth service, type declarations, authorization utilities, auth UI components, and role-based access control patterns appropriate to the site's framework and chosen identity provider(s).

Core Principles

• Client-side auth is UX only — Power Pages authentication is server-side (session cookies). Client-side role checks control what users see, not what they can access. Server-side table permissions enforce actual security.
• Framework-appropriate patterns — Every auth artifact (hooks, composables, services, directives, guards) must match the detected framework's idioms and conventions.
• Development parity — Include mock data for local development so developers can test auth flows and role-based UI without deploying to Power Pages.

Initial request: $ARGUMENTS

Prerequisites:

• An existing Power Pages code site created via /create-site
• The site must be deployed at least once (.powerpages-site folder must exist)
• Web roles must be created via /create-webroles

Workflow

1. Phase 1: Check Prerequisites — Verify site exists, detect framework, check web roles
2. Phase 2: Plan — Gather auth requirements and present plan for approval
3. Phase 3: Create Auth Service — Auth service with login/logout and type declarations
4. Phase 4: Create Authorization Utils — Role-checking functions and wrapper components
5. Phase 5: Create Auth UI — Login/logout button integrated into navigation
6. Phase 6: Implement Role-Based UI — Apply role-based patterns to site components
7. Phase 7: Verify Auth Setup — Validate all auth files exist, build succeeds, auth UI renders
8. Phase 8: Review & Deploy — Summary and deployment prompt

Phase 1: Check Prerequisites

Goal: Confirm the project exists, identify the framework, verify deployment status and web roles, and check for existing auth code.

Actions

1.1 Locate Project

Look for powerpages.config.json in the current directory or immediate subdirectories:

**/powerpages.config.json

If not found: Tell the user to create a site first with /create-site.

1.2 Detect Framework

Read package.json to determine the framework (React, Vue, Angular, or Astro). See ${CLAUDE_PLUGIN_ROOT}/references/framework-conventions.md for the full framework detection mapping.

1.3 Check Deployment Status

Look for the .powerpages-site folder:

**/.powerpages-site

If not found: Tell the user the site must be deployed first:

"The .powerpages-site folder was not found. The site needs to be deployed at least once before authentication can be configured."

Use AskUserQuestion:

If "Yes, deploy now": Invoke /deploy-site, then resume.

If "No": Stop — the site must be deployed first.

1.4 Check Web Roles

Look for web role YAML files in .powerpages-site/web-roles/:

**/.powerpages-site/web-roles/*.yml

Read each file and compile a list of existing web roles (name, id, flags).

If no web roles exist: Warn the user that web roles are needed for authorization. Ask if they want to create them first:

If "Yes": Invoke /create-webroles, then resume.

If "Skip": Continue — auth service and login/logout will still work, but role-based authorization will need roles created later.

1.5 Discover Existing Auth Configuration

Always run this discovery step, even on a first invocation — the site may have site settings from a prior run, or from hand-editing the YAML files, even if no SPA auth code exists yet. The goal is to make sure we never silently drop a provider that's already configured server-side.

Step 1 — Scan .powerpages-site/site-settings/ for already-configured providers.

Detect existing providers by matching site-setting filenames against these patterns:

For each detected provider, read its full set of .sitesetting.yml files to extract: Authority / MetadataAddress, ClientId / AppId, AuthenticationType (the providerIdentifier), Caption or display name (if present), and the {Name} slug used in the keys (e.g., OpenIdConnect_1, EntraExternalId).

Distinguishing Entra ID variants from OIDC — by Authority URL pattern:

The Entra ID (workforce) case is special — when Phase 1.5 discovery detects Authentication/OpenIdConnect/AzureAD/* settings on the site (which Power Pages auto-creates for the parent tenant), add a single entry to EXISTING_PROVIDERS:

{
  id: 'entra-id',
  type: 'entra-id',
  displayName: existingCaption || 'Sign in with Microsoft',
  // NO providerIdentifier — resolveProviderIdentifier() derives it from Portal.tenant
}

Do NOT extract the tenant ID from the existing Authority site setting just to hardcode it back into AUTH_PROVIDERS — the runtime resolver handles it. This keeps the SPA code portable if the site is ever cloned to a different tenant.

Step 2 — Scan for existing SPA auth code.

Check for these files and read their key markers:

• src/services/authService.ts or .js — look for AUTH_PROVIDERS array (current pattern) vs single AUTH_PROVIDER constant (legacy)
• src/types/powerPages.d.ts — exists or not
• src/utils/authorization.ts — exists or not
• Auth components (AuthButton.*, Login.*, Registration.*, RedeemInvitation.*, etc.) — list which exist
• src/pages/Login.tsx — extract which providers it currently renders (via AUTH_PROVIDERS import or inline)

Step 3 — Present findings to the user.

If providers were detected from site settings, present them with their config:

I found these existing auth providers on your site:

  ✓ Entra External ID
    - ProviderName: OpenIdConnect_1
    - Tenant: ba275000-98c8-404d-a6f0-c5450f2aa668
    - ClientId: e728d63e-1190-495a-ae29-663e9cc10877
    - Configured in site settings: yes
    - Surfaced in SPA UI: NO (authService.ts has no entry for this provider)

  ✓ Local Authentication
    - LoginByEmail: true
    - Surfaced in SPA UI: yes

Use AskUserQuestion:

"Keep all existing providers and add a new one" (default path):

• Store the discovered providers as EXISTING_PROVIDERS — these will be merged into the AUTH_PROVIDERS array generated in Phase 3.2
• Phase 2.1 will prompt for the NEW provider being added; the existing ones are kept untouched
• For local auth specifically — if Local Authentication is in EXISTING_PROVIDERS, always regenerate the local auth SPA code (login flow, registration page, forgot/reset password, redeem invitation) from the user's Phase 2.1 answers. Don't try to preserve hand-edited local-auth code — the local flows are complex enough that partial updates introduce more bugs than they avoid.

"Keep all existing providers (no new provider this run)":

• Skip the Phase 2.1 provider selection question entirely
• Re-derive AUTH_PROVIDERS from EXISTING_PROVIDERS only
• Useful for: fixing a site where the SPA UI is missing a provider that's already in site settings (the exact bug this branch was created to fix)

"Replace everything with a new configuration":

• Set EXISTING_PROVIDERS = []
• Delete existing OIDC/SAML2/WsFed/OpenAuth site-setting YAMLs as part of Phase 8.1
• Run Phase 2.1 as if no providers existed

DO NOT offer a "skip / no changes" option. If the user invokes setup-auth, they want auth set up — silently doing nothing is worse than asking.

Output

• Project root path confirmed
• Framework identified (React, Vue, Angular, or Astro)
• Deployment status verified
• Web roles inventory compiled
• EXISTING_PROVIDERS list compiled from site settings, with provider type, ProviderName slug, ClientId/Authority/etc. for each
• MERGE_MODE chosen: keep-and-add (default) | keep-only | replace-all
• SPA auth file inventory recorded (which files exist, whether they use AUTH_PROVIDERS array or legacy single-provider pattern)

Phase 2: Plan

Goal: Gather authentication requirements from the user and present the implementation plan for approval.

Actions

2.0 Smart Auth Inference (Before Asking)

Before asking the user which providers they want, analyze the site context from Phase 1 (site name, purpose, audience type) and try to infer appropriate auth settings automatically:

Inference rules:

If you can infer with confidence, present the recommendation with rationale:

"Based on your site purpose ({purpose}), I recommend:

• {provider} for authentication
• {registration mode} because {rationale}

Would you like to proceed with this configuration, or choose different providers?"

If "Yes": Skip Phase 2.1 provider selection and proceed directly to collecting provider-specific details (ClientId, tenant name, etc.) for the recommended provider(s).

If "No" or if you cannot infer with confidence: Fall back to Phase 2.1 below.

2.1 Gather Requirements

Re-run handling — when Phase 1.5 detected existing providers:

The behavior depends on the MERGE_MODE chosen in Phase 1.5:

• keep-only (user chose "keep all existing, no new provider this run") → Skip the new-provider selection question entirely. Proceed to the "Local Authentication" follow-ups only if local was detected. Phase 3.2 will generate AUTH_PROVIDERS from EXISTING_PROVIDERS only.
• keep-and-add (default — user wants to add one more) → Ask the user what to add. The provider selection question below should still be multi-select (the user could be adding multiple new providers in one go), but the existing providers are NOT in the list (they're already configured — the question is asking what's new). Common patterns:
  • User has Entra External ID, wants to add Local Auth → user selects "Local Authentication" → ask local follow-ups → Phase 3.2 merges
  • User has Entra External ID + Local, wants to add a second Entra External ID tenant → user selects "Entra External ID" → after collecting Authority/ClientId, ask: "You already have an Entra External ID provider configured for tenant {existing-tenant}. This new one is a separate instance — give it a distinct ProviderName slug (used in site setting keys like Authentication/OpenIdConnect/{ProviderName}/* and in code as the provider id)." Let the user pick a slug (default to the next incrementing number, e.g., OpenIdConnect_2) or pick a custom name (e.g., EntraExternalId_Employee).
• replace-all (user chose to wipe everything) → Run the provider selection question as on a first invocation.

Do NOT proactively ask "do you want to configure multiple instances?" at the start. Walk the user through configuring ONE provider at a time. When they finish configuring one and want another, they can re-run setup-auth → Phase 1.5 detects what's there → Phase 2.1 in keep-and-add mode asks "what do you want to add now?". This keeps the question count low for the common case (configure one provider) while still supporting the advanced case (multiple tenants).

IMPORTANT: Multiple providers are supported. The user may want more than one identity provider (e.g., Entra External ID + Google). If the user's initial prompt mentions specific providers, skip the provider selection question and proceed directly to collecting details for each mentioned provider.

IMPORTANT — Local Authentication: NEVER set up local authentication by default. Do NOT include it in the provider selection list, do NOT recommend it in smart inference, and do NOT configure it unless the user explicitly and specifically asks for it (e.g., "I want username/password login", "set up local login", "add local auth"). External identity providers (Entra External ID, Entra ID, OIDC, etc.) are always preferred. If the user says something ambiguous like "add login", default to an external provider — never to local auth.

If the user has NOT specified which provider(s) they want, use AskUserQuestion to determine the identity provider(s). This is a multi-select question — the user can choose one or more:

Then, for EACH selected provider, ask the mandatory follow-up questions below. Do not skip any provider — every selected provider needs its configuration collected before proceeding.

For each provider, also share the relevant Microsoft Learn documentation link so the user knows where to get the values:

For "Microsoft Account":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/openid-settings

For "Facebook":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/facebook-settings

For "Google":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/openid-settings

For "OpenID Connect (Generic)":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/openid-settings

For "Entra External ID" — use the 4-step walkthrough below. Do NOT just ask the user for Authority/ClientId/Metadata upfront — those values come from a tenant + app registration + user flow that the user may not have set up yet. Walk them through each prerequisite before asking for the corresponding value.

Reference doc: https://learn.microsoft.com/en-us/power-pages/security/authentication/entra-external-id See also ${CLAUDE_PLUGIN_ROOT}/skills/setup-auth/references/authentication-reference.md for the full Entra External ID prerequisites section the steps below cross-reference.

Pre-computed values for THIS site — before starting the walkthrough, compute:

• SITE_URL = the deployed site URL (e.g., https://site-597pv.powerappsportals.com). Read from pac env who + the site name, or from the site's existing settings.
• PROVIDER_NAME = if this is a fresh add, default to OpenIdConnect_1 (or the next free OpenIdConnect_N slug per the CallbackPath uniqueness logic in Phase 8.1). The user can override to a custom slug like EntraExternalId_Customer for multi-instance setups.
• REDIRECT_URI = {SITE_URL}/signin-{PROVIDER_NAME-lowercased} — e.g., https://site-597pv.powerappsportals.com/signin-openidconnect_1. The user pastes this verbatim into the Entra app registration.
• APP_NAME_SUGGESTION = power-pages-{site-shortname} — e.g., power-pages-savoria
• USER_FLOW_NAME_SUGGESTION = {site-shortname}-signupsignin — e.g., savoria-signupsignin

Display these to the user before Step 1 so they have them handy.

Step 1 — Tenant

If "No", show:

Steps to create an Entra External ID tenant:

1. Open https://entra.microsoft.com/
2. Sign in with the account that should own the tenant
3. From the top, click Manage tenants → Create
4. Choose External (for customers) — NOT Workforce
5. Pick a domain prefix (the tenant subdomain) — e.g., contoso becomes contoso.ciamlogin.com. This appears in every login URL.
6. Free 30-day trial: no credit card required. You can attach a paid Azure subscription later.

Detailed guide: https://learn.microsoft.com/en-us/entra/external-id/customers/quickstart-tenant-setup

When you've created the tenant, switch to it (top-right tenant picker in entra.microsoft.com), then come back here.

If "I'm not sure", show: "At https://entra.microsoft.com/ → top-right tenant picker. Tenants for customers are labeled External. Workforce tenants won't work — that's a different product."

Then collect the tenant identifiers:

Validate: subdomain matches ^[a-z0-9-]+$ (no dots, no uppercase, no .ciamlogin.com suffix); tenant ID matches the UUID regex. If either fails, show the expected format and re-prompt.

Store as EXTERNAL_ID_TENANT_SUBDOMAIN and EXTERNAL_ID_TENANT_ID.

Step 2 — App registration

Confirm the Redirect URI first. The skill pre-computes a default based on the site URL and PROVIDER_NAME, but the user may prefer a different URI:

The Power Pages site needs a Redirect URI registered in your app registration. Based on the site URL and provider name, the default is:

{REDIRECT_URI}

You can keep this default, or use a different URI — for example, {SITE_URL}/signin-entra-customer or {SITE_URL}/auth/external-id. The host must be your Power Pages site; only the path can change.

If "Use a different URI", ask:

Validate the custom URI:

• Must start with {SITE_URL}/
• Path portion must match ^/[a-zA-Z0-9_\-/]+$ (alphanumeric, hyphen, underscore, additional slashes allowed)
• Path must NOT collide with any Authentication/OpenIdConnect/*/CallbackPath already in .powerpages-site/site-settings/ (from Phase 1.5 discovery)
• Path must NOT be a reserved Power Pages server path (/Account/..., /SignIn, /Register, /_layout/..., /api/...)

Re-prompt on invalid input. Then store the value as REDIRECT_URI for the rest of the walkthrough and Phase 8.1.

Note: The skill writes two site settings derived from this single REDIRECT_URI: the user-facing RedirectUri (the full URI, sent to the IdP) and the internal CallbackPath (just the path portion, used by the OWIN middleware to know which incoming request to handle). The maker doesn't need to think about CallbackPath separately — the skill derives it automatically from REDIRECT_URI by extracting the path portion.

If "No", show step-by-step with the confirmed Redirect URI verbatim:

Steps to register the app:

1. At https://entra.microsoft.com/, make sure you're in your External ID tenant (top-right picker)

2. Applications → App registrations → New registration

3. Name: {APP_NAME_SUGGESTION} (or your own name)

4. Supported account types: select Accounts in this organizational directory only (single tenant) — recommended for Power Pages. Multi-tenant configurations forcibly disable contact mapping by email for security.

5. Redirect URI: select Web, paste exactly:

   {REDIRECT_URI}
   

   (Copy this verbatim. Any mismatch between this value and the RedirectUri site setting causes sign-in to fail with AADSTS50011: The reply URL specified in the request does not match.)

6. Click Register

7. Open the Authentication tab → under "Implicit grant and hybrid flows" check Access tokens AND ID tokens → Save

8. Open the API permissions tab → click Grant admin consent for {your tenant} → confirm

9. Go back to the Overview tab and copy the Application (client) ID (it's a GUID)

Detailed guide: https://learn.microsoft.com/en-us/entra/external-id/customers/quickstart-register-app

If "Yes" (existing app), before asking for the Client ID, also confirm the user has the matching Redirect URI registered:

Before continuing, please verify that your existing app registration has the following Redirect URI registered (under Authentication → Web in the Entra admin center):

{REDIRECT_URI}

If it's missing or different, add it now. An app registration can have multiple Web Redirect URIs registered — adding ours doesn't break any existing integrations. Sign-in will fail if the value in Power Pages doesn't match a registered URI exactly.

Then ask for the value:

Validate: must match UUID v4 format (^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$). Re-prompt on mismatch.

Store as EXTERNAL_ID_CLIENT_ID.

Do NOT ask about client secret. Entra External ID app registrations are public clients using PKCE — no secret needed. The skill will create site settings without ClientSecret and skip Phase 8.1.1 (Key Vault) for this provider. If the user has a confidential-client scenario that requires a secret, they can add it manually via the Power Pages admin center after deploy — document this as an advanced override in Phase 8.5 post-deploy notes.

Step 3 — User flow

User flows define what attributes are collected from users and what claims appear in the ID token. Without one, sign-in fails after the IdP redirect.

If "No", the walkthrough's user-flow-attribute selection must match the PROFILE_MAPPING_CHOICE collected later (Track B's profile mapping question). Since this step runs BEFORE that question, ask it now (just for Entra External ID):

The user flow needs to be told which attributes to collect from users and which claims to return in the token. The skill maps claims → Dataverse contact fields automatically — the attributes you select here determine what's available.

Store as PROFILE_ATTRIBUTES_CHOICE (this also drives PROFILE_MAPPING_CHOICE in Track B — they should be consistent; default both to "Standard" unless the user explicitly differs).

Then show:

Steps to create the user flow:

1. At https://entra.microsoft.com/, in your External ID tenant
2. External Identities → User flows → New user flow
3. Name: {USER_FLOW_NAME_SUGGESTION} (or your own — letters, digits, hyphens, underscores only)
4. Identity providers for sign-in: choose Email with password (Recommended — most familiar to customers) or Email one-time passcode (passwordless)
5. User attributes to collect (the sign-up form fields): based on your choice above, select:
   • Standard / Standard + phone: ☑ Email Address, ☑ Given Name, ☑ Surname{, ☑ Phone Number if Standard + phone}
   • Email only: ☑ Email Address
6. User attributes to return as claims (in the ID token): same selections as above — these power profile mapping into Dataverse contact fields
7. Click Create
8. Open the user flow you just created → Applications tab → Add application → select the app you registered in Step 2 → Select

Detailed guide: https://learn.microsoft.com/en-us/entra/external-id/customers/how-to-user-flow-sign-up-sign-in-customers

Then ask:

Validate: matches ^[a-zA-Z0-9_-]+$ (letters, digits, hyphens, underscores). Re-prompt on mismatch.

Store as EXTERNAL_ID_USER_FLOW.

Step 4 — Display name + Confirmation

Display name length guidance: keep labels around 28 characters or less to display on a single line in the horizontal-row Login page layout (which is the default). Longer labels still work — buttons grow vertically to wrap text to two lines — but single-line buttons look more polished. For reference:

• "Sign in with Entra External ID" — 30 chars (wraps on narrow cards, fits on wider)
• "Sign in with Microsoft Entra External ID" — 40 chars (wraps to two lines in the default horizontal layout)
• "Customer Sign In" — 16 chars (always single line, but less descriptive)

If the user has multiple external providers configured (e.g., Entra External ID + Google), shorter labels matter more because each button gets less width. For a single-provider site, longer labels are fine (the button spans the full row width).

Store as EXTERNAL_ID_DISPLAY_NAME.

Now derive the configuration and present a summary for confirmation:

• Authority: https://{EXTERNAL_ID_TENANT_SUBDOMAIN}.ciamlogin.com/{EXTERNAL_ID_TENANT_ID} (NO trailing /v2.0/ — Entra External ID uses the bare tenant path, NOT the B2C-style URL)
• MetadataAddress: https://{EXTERNAL_ID_TENANT_SUBDOMAIN}.ciamlogin.com/{EXTERNAL_ID_TENANT_ID}/v2.0/.well-known/openid-configuration
• AuthenticationType (provider identifier in AUTH_PROVIDERS array and ExternalLogin POST): same value as Authority
• RedirectUri: {REDIRECT_URI} (computed earlier)
• ClientId: {EXTERNAL_ID_CLIENT_ID}

Present this summary inline:

About to configure:

Field	Value
Provider	Microsoft Entra External ID
Tenant	{subdomain}.ciamlogin.com ({tenantId})
App (Client) ID	{clientId}
User flow	{userFlowName}
Redirect URI	{REDIRECT_URI} (must already be registered in your app)
Authority	{authority} (derived)
Metadata	{metadataAddress} (derived)
Display name	{displayName}
Login button	"{displayName}"
Client secret	None (public client / PKCE)

Continue to write these site settings?

If "No", re-prompt for the specific value the user wants to change.

Implementation note: Power Pages server treats Entra External ID as a generic OpenID Connect provider (no special CIAM handling). All settings go under Authentication/OpenIdConnect/{ProviderName}/. The provider value posted to /Account/Login/ExternalLogin must match the AuthenticationType site setting, which by default equals the authority URL.

For "SAML2":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/saml2-settings

For "WS-Federation":

Docs: https://learn.microsoft.com/en-us/power-pages/security/authentication/ws-federation-settings

Profile mapping (for every external provider — OIDC, Entra External ID, SAML2, WS-Federation, social)

After collecting the provider's basic details, ask what user profile info should flow from the IdP to the Dataverse contact. Don't skip this — without it, contact records have empty firstname/lastname and the SPA falls back to displaying the email or username everywhere.

Store as PROFILE_MAPPING_CHOICE. Then ask:

Store as PROFILE_SYNC_FREQUENCY. This determines whether to write LoginClaimsMapping (every login) in addition to RegistrationClaimsMapping (first sign-in only).

Why "First sign-in only" is now the default: this skill optionally scaffolds a SPA profile page (/user-profile) where signed-in users can edit their own contact info. If LoginClaimsMapping is set, the server overwrites the user's edits with IdP claims on the very next login — which is confusing and silently undoes the user's work. "First sign-in only" lets the user own their profile after the contact is created. Switch to "Both" only when the IdP is the sole authoritative source for these fields (e.g., HR-managed workforce directory) and end-user edits should NOT persist.

Claim type values — the mapping format is comma-separated contactfield=claimtype (NOT JSON). For OIDC providers like Entra External ID, use OIDC short names:

For SAML2 / WS-Federation, the claim types are URIs (e.g., http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname). Adjust the "Standard" generated mapping accordingly. For social providers, the claim types are provider-specific (Google: given_name, Facebook: name).

Contact linking (for every external provider)

Ask whether to auto-link external sign-ins to existing contacts by email.

Store as CONTACT_LINKING_CHOICE. This drives AllowContactMappingWithEmail (true for "link", false for "create new").

Why "Link to the existing contact" is the default: the common flow is that admins pre-create contact records in Dataverse (often via invitation or import) and then expect those exact contacts to be picked up when the user signs in for the first time via the configured IdP. Without linking, the server creates a brand-new contact and the pre-created record sits orphaned — confusing for makers and easy to misdiagnose. Linking by verified email is the well-known pattern for joining IdP identity to an existing CRM record.

⚠ Multi-tenant safety: For multi-tenant Entra External ID (Authority uses /organizations/ or /common/, or IssuerFilter is a wildcard), the Power Pages server forcibly disables AllowContactMappingWithEmail regardless of the site setting (BlockContactMappingSettingForMultitenantApp feature flag in LoginController.cs:2578-2587). Reason: email claims can't be trusted across tenants. If the user selects "Link to the existing contact" but the Authority is multi-tenant, warn them that linking won't work and recommend single-tenant Authority.

⚠ Security: When AllowContactMappingWithEmail = true, an attacker who can sign into the configured IdP using a victim's email can take over the victim's contact. Enable only when the IdP verifies emails (Entra External ID with single tenant verifies; arbitrary OIDC may not). Switch to "Create a new contact" if you're configuring an IdP whose email-verification stance you don't control (e.g., a generic OIDC endpoint).

For "Local Authentication" (only if user explicitly requested it): Ask the user

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