Okta migration
Migrate Okta to Microsoft Entra ID with control at every step
An Okta migration to Microsoft Entra ID, formerly called Azure Active Directory, is not a single switch. It is a set of related workstreams that each need their own inventory, target design, and validation. PhaseArc structures those workstreams so the sequence is visible before anything changes.
What is an Okta to Entra migration?
An Okta to Microsoft Entra ID migration moves application single sign-on, user and group data, access assignments, policy intent, authentication methods, and provisioning integrations out of Okta and into Microsoft Entra ID. Applications are migrated in waves, Okta keeps serving anything not yet cut over, and each wave is validated before the federation and provisioning cutover is completed.
The term Azure AD migration describes the same project. Microsoft renamed Azure Active Directory to Microsoft Entra ID, and the migration path documented by Microsoft applies under either name.
Six workstreams
Separate the work before you sequence it
Treating these as one project is what makes Okta migrations stall. Each has a different inventory, a different target model, and a different definition of done.
Workstream 01
Applications
Workstream 02
Federation
Workstream 03
Directory and provisioning
Workstream 04
Sign-on policies
Workstream 05
Authentication methods
Workstream 06
Workflows and integrations
Application paths
SAML and OIDC applications do not follow the same path
Protocol determines the target configuration, the amount of vendor coordination, and how much of the work can be repeated at scale.
SAML applications
A SAML application is configured in Microsoft Entra ID as an enterprise application with its own entity ID, reply URL, signing certificate, and claims mapping. Most service providers need their metadata updated, which usually means a coordinated change window with the application owner. Claims that Okta produced through expression language need an explicit target equivalent.
OIDC and OAuth applications
OIDC and OAuth applications generally need to be registered again in Microsoft Entra ID, with new client identifiers, redirect URIs, secrets or certificates, and consented permissions. Because credentials change, these applications need a coordinated switchover and a validated rollback position rather than a background migration.
Legacy applications that rely on password vaulting, header-based access, or proprietary Okta features need an architecture decision during Prepare, not during Migrate.
Coexistence and cutover
Controlled coexistence, staged migration, planned fallback
Most Okta migrations run for weeks or months with both platforms live. That is a design decision, not a failure state.
- Group applications into waves by owner, risk, protocol, and business calendar rather than by alphabetical order.
- Keep Okta serving authentication for anything not yet migrated so users are never left without a working path.
- Define the validation that must pass before a wave is accepted: sign-in, authorization, claims, provisioning, and any downstream automation.
- Write the fallback steps for each wave before it runs, including who can trigger them and what evidence justifies it.
- Handle federation and directory provisioning cutover as their own scheduled events with their own validation.
- Only plan Okta decommissioning once every dependency has a confirmed owner and replacement.
PhaseArc stages
How PhaseArc runs an Okta migration
The same four stages apply to each wave, with concrete outputs at every step.
- 01
Discover
Inventory the source estate and its dependencies.
- 02
Prepare
Map objects to a target design, log exceptions, and plan waves.
- 03
Migrate
Run controlled batches while the source keeps serving sign-ins.
- 04
Validate
Test access and configuration, record evidence, decide on cutover.
| Stage | Focus | Concrete output |
|---|---|---|
| Discover | Source inventory and dependencies | A structured record of applications by protocol, users, groups, assignments, policies, provisioning connections, and known integrations. |
| Prepare | Mapping, target design, exceptions, waves | A per-object treatment, a documented target design, an exception list with owners, a wave plan, and a test plan. |
| Migrate | Controlled batches | Executed wave changes in Microsoft Entra ID with Okta retained until the approved cutover, plus a record of every change. |
| Validate | Access, assignments, policies, provisioning | Validation results per application and per group, an exception log, and a documented cutover or fallback decision. |
Scope and honesty
What each part of an Okta estate typically needs
This table describes typical treatment, not a verified product support matrix. Final scope is established during assessment.
| Okta object | Typical Entra destination | Status |
|---|---|---|
| Users and profile attributes | Entra ID users and directory attributes | Assessed and mapped |
| Groups and group rules | Security groups, dynamic membership rules | Mapped or translated |
| Group and app assignments | Enterprise application assignments | Mapped, validation required |
| SAML applications | Enterprise applications with SAML SSO | Mapped or translated, validation required |
| OIDC and OAuth applications | App registrations and enterprise applications | Re-register, validation required |
| Sign-on policies | Conditional Access policies | Target design required |
| Multifactor enrollments | Entra authentication methods | Environment dependent, registration planning required |
| Directory sync and provisioning | Microsoft Entra Connect and Entra provisioning | Target design required |
| Workflows and API integrations | Microsoft Graph, Entra lifecycle features, or retirement | Environment dependent |
Okta migration questions
What is an Okta to Microsoft Entra ID migration?
Is Microsoft Entra ID the same as Azure AD?
Can Okta sign-on policies be copied into Conditional Access?
Do users have to re-register multifactor authentication?
Can Okta and Microsoft Entra ID run side by side during the project?
How long does an Okta migration take?
Official sources
- Microsoft Learn: Migrate applications from Okta to Microsoft Entra ID
- Microsoft Learn: Migrate Okta federation to Microsoft Entra ID managed authentication
- Microsoft Learn: Migrate Okta sync provisioning to Microsoft Entra Connect
- Microsoft Learn: Migrate Okta sign-on policies to Microsoft Entra Conditional Access
- Microsoft Learn: Migrate application authentication, phases and planning overview
Keep going
Where to go next
Migration map
Scope your Okta migration on evidence
An assessment establishes your application and protocol inventory, policy complexity, provisioning dependencies, and the wave sequence that fits your environment.