B2C MIGRATION ACCELERATOR
Azure AD B2C Classic → Microsoft Entra External ID
The flagship IdentityBridge migration path: discovery, compatibility analysis, governed migration, validation and evidence.
FLAGSHIP MIGRATION PATH
Azure AD B2C Classic → Microsoft Entra External ID
IdentityBridge sits between source and target CIAM, turning discovery into governed migration decisions and evidence.
SOURCE CIAM
Azure AD B2C Classic
Applications
Users / Identities
User Flows
Custom Policies
Identity Providers
Claims
REST Integrations
Auth Configuration
IDENTITYBRIDGE ENGINE
1Discover
2Assess
3Map
4Plan
5Review
6Execute
7Validate
8Evidence
DependenciesGraph of apps, policies, IdPs & claims
Risk (SDIAMR) Scored per construct
AutomationCandidates auto-mapped
Human ReviewCustom policies & sensitive claims
Approval gatebefore material changePlan → Review → Approved → Execute
TARGET CIAM
Microsoft Entra External ID
Applications
Customer Identities
External IdPs
Attributes / Claims
Supported Journeys
Integrations
Target Configuration
IBML · IDENTITYBRIDGE MIGRATION LIFECYCLE
End-to-end migration pipeline
A single, governed flow from connection to steady-state operation. State, gates and automation are visible at every stage.
01ConnectAuthorize source & targetAssisted
02DiscoverApps, identities, policies, IdPs, claimsAutomated
03AssessCompatibility, blockers, riskAutomated
04Map & PlanTarget mappings, waves, sequencingAssisted
05Review & ApproveHuman approval before changeManual
06ExecuteControlled migration activitiesAutomated
07ValidateFunctional config verificationAutomated
08Cutover & EvidenceReadiness, results, audit trailAssisted
09OperatePost-migration monitoringAutomated
AutomationHuman reviewEvidence
CONSTRUCT-BY-CONSTRUCT FIDELITY
B2C → External ID compatibility matrix
For each Azure AD B2C construct we show the target Entra External ID equivalent, automation mode, risk and any manual review requirement.
| Construct | B2C Classic | Entra External ID | Mode | Risk |
|---|---|---|---|---|
| Applications | App Registrations | App Registrations | Available | Low |
| Users / Identities | Local + social accounts | Customer identities | Available | Low |
| User Flows | Built-in policies | User flows | Assisted | Medium |
| Custom Policies | IEF XML | Native + extensions | Manual review | High |
| Identity Providers | Local, Google, Facebook, SAML, OIDC | External IdPs | Assisted | Medium |
| Claims | Extension attributes | Custom attributes | Assisted | Medium |
| REST Integrations | API connectors | API connectors | Available | Low |
| MFA | MFA policies | Conditional access | Assisted | Medium |
Notes
Redirect URIs re-mapped automatically
Password hash transfer per Microsoft guidance
Attribute set & branding translated
IEF trust framework requires review
Client secrets rotated during cutover
Attribute schema mapped 1:1 where possible
Endpoint URLs preserved
Requires policy re-modeling
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