IntuneHow-to

Federating Apple Business Manager with Microsoft Entra ID: Managed Apple Accounts and sync

Link Apple Business (formerly Apple Business Manager) to Microsoft Entra ID: approve, test and turn on federation, sync users, handle account conflicts and fix sign-in failures.

Managed Apple Accounts are the work identities behind account-driven User Enrollment, Shared iPad and work iCloud data on Apple devices. Federating them with Microsoft Entra ID lets users sign in with their normal work credentials instead of a separate Apple password. In this post I'll link Apple Business (Apple's current name for Apple Business Manager) to Microsoft Entra ID, turn on directory sync, handle account conflicts, and fix the failures you're most likely to meet.

Errors this guide fixes

  • Need admin approvalMicrosoft sign-in (consent screen)+1 more guide
  • AADSTS50105Microsoft Entra sign-in log
  • AADSTS53003 (BlockedByConditionalAccess)Microsoft Entra sign-in log+1 more guide
How this guide is organised: How it works → Prerequisites → Step-by-step → What it changes for Intune → Verify → Common errors and fixesFlow diagram of the article's sections in reading order: 1. How it works. 2. Prerequisites. 3. Step-by-step (5 steps: Approve federated authentication; Work through user name conflicts; Test with one user; Turn on sign-in; Turn on directory sync). 4. What it changes for Intune. 5. Verify. 6. Common errors and fixes. Toolbox: AADSTS50105, AADSTS53000, AADSTS53003, Settings › Domains, userPrincipalName.1How it works2Prerequisites3Step-by-step1Approve federatedauthentication2Work through username conflicts3Test with one user4Turn on sign-in5Turn on directorysync4What it changes for Intune5Verify6Common errors and fixesTOOLBOXAADSTS50105AADSTS53000AADSTS53003Settings › DomainsuserPrincipalNameHow this guide is organised: How it works → Prerequisites → Step-by-step → What it changes for Intune → Verify → Common errors and fixesFlow diagram of the article's sections in reading order: 1. How it works. 2. Prerequisites. 3. Step-by-step (5 steps: Approve federated authentication; Work through user name conflicts; Test with one user; Turn on sign-in; Turn on directory sync). 4. What it changes for Intune. 5. Verify. 6. Common errors and fixes. Toolbox: AADSTS50105, AADSTS53000, AADSTS53003, Settings › Domains, userPrincipalName.1How it works2Prerequisites3Step-by-step1Approve federated authentication2Work through user name conflicts3Test with one user4Turn on sign-in5Turn on directory sync4What it changes for Intune5Verify6Common errors and fixesTOOLBOXAADSTS50105AADSTS53000AADSTS53003Settings › DomainsuserPrincipalName
At a glance: how this guide is organised · 5 steps · 5 key settings and tools

How it works#

  • Apple Business connects to the global Microsoft Entra ID OpenID Connect service (login.microsoftonline.com). National clouds aren't supported.
  • Entra ID authenticates the user and issues the tokens, so your MFA and certificate-based authentication apply. Apple never writes data back to Entra ID.
  • Admin consent gives Apple read access through these scopes: openid profile email for sign-in, Domain.Read.All for your verified domains, Directory.Read.All for users, AuditLog.Read.All for password changes and resets, and offline_access for a refresh token so it can keep reading.
  • When Entra ID changes or resets a user's password, Apple ends the Managed Apple Account session and asks the user to sign in again.
  • Users sign in to assigned iPhone, iPad, Mac, Apple Vision Pro and Shared iPad, and then to iCloud on the web. iCloud for Windows doesn't support Managed Apple Accounts.

Prerequisites#

  • A Microsoft Entra Global Administrator for the approval step. Once the connection works, Apple lets you lower that account to Global Reader, Application Administrator or Cloud Application Administrator, or to Directory Readers plus Reports Reader. Apple describes the read access those roles give as required by Apple Business, so treat the account as a dependency: don't delete or disable it.
  • An Apple Business account whose role can configure federation and connect an identity provider. Accounts with that permission can't use federated sign-in themselves; they only manage it.
  • Users whose user principal name (UPN) matches the address they should use as their Managed Apple Account, because directory sync maps userPrincipalName to it.
  • A message for staff who already use the work domain for personal Apple Accounts.

Step-by-step#

1. Approve federated authentication#

  1. In Apple Business, go to Settings › Domains and select Get Started next to User sign-in and directory sync.
  2. Select Microsoft Entra ID › Continue, then Sign in with Microsoft as a Global Administrator.
  3. Read the agreement, select Consent on behalf of your organization, then Accept.
  4. Review the verified and conflicted domains, then select Done.

Watch out: From this point nobody can create a new personal Apple Account with the domain, which can affect other Apple services your users rely on. Apple's guide covers this under transferring Apple services.

2. Work through user name conflicts#

Apple checks whether personal Apple Accounts already use your domain, and you can't test until that check is complete. Admins report that the owners are asked to change the email address on those accounts within about 60 days, after which Apple renames any remaining accounts to a temporary user name and releases the address to your organization; the personal account itself stays with the user. Tell people before you start.

3. Test with one user#

  1. In Settings › Domains, select Federate next to the domain.
  2. Select Sign in to Microsoft Entra ID Portal and sign in as an ordinary user from that domain.
  3. Select Done twice, then sign out of Apple Business.

Note: The test also changes your default Managed Apple Account format. It only runs once the conflict check is complete and the default format has been updated.

4. Turn on sign-in#

In Settings › Domains, select Manage next to the domain and turn on Sign in with Microsoft Entra ID.

5. Turn on directory sync#

In Settings › Domains, under Directory Sync, select Set up next to the domain. Apple labels this feature Microsoft Entra Connect, but it's Apple Business reading your directory, not the Entra Connect Sync server you may run on-premises. Synced accounts are read-only in Apple Business until you disconnect; after that they become manual, editable accounts. The first sync is the slowest. Use Sync Now to pull changes immediately.

Microsoft Entra IDApple Business
givenName / surnameFirst Name / Last Name
userPrincipalNameManaged Apple Account and email address
department, Employee IdDepartment, Person Number
employeeOrgData.costCenter / employeeOrgData.divisionCost Center / Division
objectIdNot shown; used to detect conflicting accounts

What it changes for Intune#

  • Account-driven User Enrollment: the user enters their work account (their UPN) in Settings › General › VPN & Device Management, and the Apple sign-in hands over to the Entra sign-in page. The same domain must also host the service discovery file. See account-driven User Enrollment with Intune.
  • Conditional Access: a federated sign-in is an Entra sign-in to Apple's application, so your policies apply. A policy that targets all resources and requires a compliant device can block a personal iPhone that isn't enrolled yet.

Verify#

  • In Apple Business, Settings › Domains shows sign-in turned on for the domain and directory sync set up. Synced users appear as read-only.
  • In the Microsoft Entra admin center, the consent created an Apple enterprise application. The audit log has the consent entry, and the sign-in logs show pilot users signing in to that application successfully.
  • On a test device, a pilot user enters their work address, gets the Entra sign-in page and MFA prompt, and finishes signing in.

Common errors and fixes#

What you seeCauseFix
Need admin approval during step 1 (or Approval required if you use the admin consent workflow)The account isn't a Global AdministratorApprove with a Global Administrator
Sign-in fails during approval or the testWrong credentials, or the test user isn't in the domain being federatedUse an account from that domain
An Apple Business admin can't sign in with Entra credentialsFederation managers are excluded by designUse a separate account for daily work
Cannot turn on Microsoft Entra Connect Sync now. You must federate a domain to turn on Microsoft Entra Connect Sync (reported by admins)Directory sync was attempted before federationFinish steps 1 to 4 first
AADSTS50105The Apple enterprise application requires assignment and the user isn't assignedAssign the user's group, or turn off assignment required
AADSTS53003 (BlockedByConditionalAccess) or AADSTS53000A Conditional Access policy blocks the Apple application sign-inFind the policy in the sign-in log and adjust it (guide)
Directory sync stops after an admin account clean-upThe approving account was deleted, disabled or lost the roles that give Apple read accessRestore it, or approve again with a Global Administrator

If your tenant lives in a national cloud, Apple doesn't currently support federation, so Managed Apple Accounts keep their Apple-managed passwords.

References#

Revision history: Oct 2026 — re-checked against Microsoft Learn and the vendors' documentation: 2 details reworded or labelled as reported by admins.

Written and checked against current Microsoft Learn documentation and the vendor documentation linked in the references. Test changes with a pilot group before rolling them out to everyone, and if an admin center path has moved since, search for the setting name instead.

Spotted a mistake, or did this fix work differently for you? Email me or message me on LinkedIn — corrections are credited in the article.

Written by

Omer Eltayeb

Intune Subject Matter Expert in Cairo, Egypt, former Microsoft Cloud Solutions Architect, Microsoft Certified Trainer and Microsoft Innovative Educator Expert (2024–26) and Microsoft Elevate Educator Expert (2026–27). I share practical, step-by-step guides, study plans, scripts and toolkits for Microsoft Intune, Configuration Manager, Microsoft Entra ID, Microsoft Defender, Exchange and Microsoft 365 with the community.

Microsoft Certified Trainer (MCT) 2026Microsoft Innovative Educator Expert 2025–2026Microsoft Elevate Educator Expert 2026–2027ISC2 Certified Information Systems Security Professional (CISSP)Microsoft 365 Certified: Enterprise Administrator Expert (MS-102)