How to Two-way sync Contacts Between iCloud and Global Address Lists

This comprehensive article will outline how to two-way sync contacts between iCloud and Global Address Lists.

Syncing contacts between iCloud and Global Address Lists (GAL) can provide significant benefits for organizations, especially those operating in large-scale and globally dispersed environments. Firstly, integrating iCloud contacts with GAL ensures seamless communication and collaboration across the organization. GAL serves as a centralized directory containing contact information for all employees within the organization, including email addresses, phone numbers, and other pertinent details. By syncing iCloud contacts with GAL, employees can access a comprehensive database of contacts, including both internal colleagues and external partners or clients, directly from their iCloud-connected devices.

Thanks to this Two-way sync feature, you can: 

  • Two-way sync iCloud contacts with Global Address Lists.
  • Update contacts simultaneously across the two platforms
  • Without producing duplicates, CiraHub effortlessly syncs and moves data from iCloud to Global Address Lists.

  This article will show you how to enable a two-way contact sync between iCloud and Global Address Lists.

Set Up a Two-Way Contact Sync Between iCloud and Global Address Lists

Create a Spoke for iCloud

  1. To two-way sync iCloud contacts with Global Address Lists, you’ll first need to log in to CiraHub. You will be taken to the onboarding wizard. (See figure below.) Next, select the object you want to sync. In this example the contacts object has been selected. 

Calendar and Contact Selection

2. Next start the Hub and Spoke setup. Click on “iCloud ” as your source type for your contact spoke. (The Hub contains all synced Contacts from each spoke; a spoke can be a Public Folder, a user mailbox, the GAL or a CRM.) 

select icloud as your source type

3. Enter your Apple ID and Password for your iCloud account.

sign in to your icloud in cirahub

4. Type in a Spoke name and click next.

5. Type in a Hub name and click Create.

6. Select the option to add an Additional Spoke.

Add GAL Spoke

7. Select Microsoft 365 In another tenant and Select Global Address List as the source type of your contact spoke. Each tenant will need a Dedicated Service Account with the following roles: access to Address Lists, Mail Recipient Creation, Mail Recipients permissions.

Check out this guide to learn the permissions and settings required for a two-way Gal sync in CiraHub.

Add spoke and select Gal

8. Click “GRANT ACCESS” or select any existing credentials that have already been saved. You can also choose to invite users from another tenant by entering their email address or Click “CONFIGURE” to grant CiraHub access through Certificate Based Authorization.
Click Grant Access

9. Next, you can sync your Microsoft Service account to the GAL connect by choosing an Authentication Method. In this example, we selected credentials and entered the login and password.
Gal Authentication Method

10. Wait for CiraHub to validate the connection to the Global Address List after entering the Microsoft Login and Password.
G-G Validate

11. Type in a Spoke Name and click Next.

12. Type in a Hub Name and click Create.
GAL Hub Name

13. Click the Spoke that was just created. Click Turn On under the Synced tile.

14. The Spoke Sync Options will open. (See figure below.) Click the Allow Hub to create and sync items in this spoke checkbox to enable two-way sync.

15. Users can customize sync settings by expanding the Advanced Tab and adding sync filters to the Spoke. This would enable a user to synchronize and create Hub items based on specific criteria. Then Click Save.

Check out this guide to learn how to use contact filtering.

16. Click on the GAL Tab to set up GAL Read Option Settings.

17. Here, you can choose which Global Address List Objects (Mailboxes, Contacts, and Groups) you would like to populate this Hub with.

18. Click on the Hub and then click Sync Now to enable two-way GAL sync.


The steps above have described how to two-way sync iCloud and Global Address Lists Contacts with CiraHub. CiraHub’s software makes it easy for anyone to quickly set up a multi-way CRM sync and more (i.e contact and calendar sync) for their company. Start your CiraHub trial today!

How Would Your Business Change if You Could Two-Way Sync Contacts Between Your CRMs, Google, and Microsoft Apps!

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Jon Harris is a Technical writer with experience working for cybersecurity and tech related companies. He has a bachelor's degree in computer science and likes to read, hike, and fish in his spare time. He began his career in computer science before pursuing a career as a writer, and editor.