Azure AD B2C to Microsoft Entra External ID – Client & Partner Identity Migration

This offer supports organisations migrating customer and partner identity platforms from Azure AD B2C and other legacy CIAM solutions to Microsoft Entra External ID.

Azure AD B2C is deprecated and will reach full end of life in May 2030. Organisations must migrate customer and partner identity estates, from simple authentication implementations to complex, highly customised user journeys, to a modern, secure, and scalable Microsoft external identity platform.

External identity migrations are not a simple lift‑and‑shift. Many organisations rely on bespoke user journeys, branding, custom policies, and API integrations that cannot be directly migrated without careful assessment and planning. This engagement provides a structured, low‑risk approach to moving from Azure AD B2C and legacy CIAM platforms to Microsoft Entra External ID.

Microsoft Entra External ID underpins secure access to Microsoft 365‑connected applications and services, supporting Zero Trust principles, compliance requirements, and modern digital service delivery for customers, partners, and citizens.

This offer is designed for organisations that:

• Use Azure AD B2C today and require a supported future platform
• Have complex or customised customer or partner identity journeys
• Need to migrate external identity data at scale
• Use competitor CIAM platforms and want to consolidate onto Microsoft
• Require flexible branding and end‑to‑end control of user experience
• Operate customer, partner, or citizen‑facing portals that are business‑critical
• Must meet specific security, privacy, or compliance requirements

Engagement options available within this offer are delivered through a structured progression, starting with discovery and expanding into delivery as required:

Discovery Lite: A short, paid identity discovery engagement designed to provide clarity and direction. Delivered through a 60–120‑minute remote session with a small number of key stakeholders, followed by light analysis and a concise written summary highlighting identity verification risks, priority use cases, and recommended next steps.

Workshop:
A time‑boxed workshop to explore external identity migration requirements and delivery approach in more depth using Microsoft Entra External ID.

Proof of Concept:
A limited‑scope validation of Microsoft Entra External ID for a selected customer or partner identity scenario.

Minimum Viable Product (MVP):
Delivery of a production‑ready external identity scenario supporting priority customer or partner journeys.

Full Migration and Implementation:
End‑to‑end migration from Azure AD B2C and legacy CIAM platforms to Microsoft Entra External ID.

Final scope, approach, and pricing are refined based on the organisation’s specific requirements.