Microsoft and Slalom Partner to Accelerate Microsoft Entra External ID Migrations from Azure AD B2C

March, 17 2026 - Slalom, the global business and technology consulting company, today announced a migration services partnership with Microsoft focused on accelerating Azure AD B2C migrations to Microsoft Entra External ID. Slalom brings deep expertise in complex B2C environments to help organizations modernize customer identity with speed, reduced risk, and operational continuity.

Microsoft Entra External ID represents the evolution of customer identity, providing a modern, unified platform to securely manage external identities at enterprise scale. Built natively into Microsoft Entra, External ID provides advanced security, governance, and developer capabilities designed to power seamless digital experiences.

Microsoft Entra External ID replaces its predecessor Azure AD B2C and will provide a richer set of functionality with easier configuration. However, migrating existing B2C tenants, including custom policies, user directories, application integrations, and downstream services, may require careful planning and deep technical expertise.

To help organizations navigate this transition, Microsoft and Slalom are collaborating to support customers throughout the migration journey, from early assessment and architecture planning to implementation and production cutover.

“Microsoft Entra External ID provides significant advantages for organizations migrating from Azure AD B2C,” said Pawan Nrisimha, Principal Product Manager. “With built-in Conditional Access and MFA, modern developer SDKs, integrated security protections that help organizations stay secure by default, and simplified policy management, Microsoft Entra External ID delivers a unified identity platform for modern customer identity experiences. Partners like Slalom play a critical role in helping organizations plan and execute these migrations with the architectural rigor and delivery expertise required for complex identity environments.”

“Organizations migrating from Azure AD B2C are navigating both technical complexity and business continuity requirements,” said Betsy Pridmore, Managing Director, Slalom - Microsoft Cloud. “Through our partnership with Microsoft, Slalom is supporting customers across the full migration lifecycle — from readiness assessments and migration strategy to architecture design, phased implementation, and production cutover.”

By combining Microsoft’s strategic identity platform with Slalom’s migration expertise, organizations can reduce risk, simplify complexity, and accelerate their transition to a modern external identity architecture.

To learn more about Microsoft Entra External ID and Slalom’s migration services, visit the Microsoft Learn B2C migration partner page or contact your Microsoft account team.

About Slalom

Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always. From strategy through delivery, our agile teams across 53 offices in 12 countries collaborate with clients to bring powerful customer experiences, innovative ways of working, and new products and services to life. We are trusted by leaders across the Global 1000, many successful enterprise and mid-market companies, and 500+ public sector organizations to improve operations, drive growth, and create value. At Slalom, we believe that together, we can move faster, dream bigger, and build better tomorrows for all.