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Import Active Directory attributes into Signature 365

Scenario

You are in a hybrid Active Directory / Entra ID environment and some Active Directory attributes for users are not populated in Signature 365.

Reason

By default, only certain attributes are synchronised from your on-premise Active Directory to Entra ID.

Solution

Completing the steps below will ensure any additional Active Directory attributes you need in Signature 365 are synchronised from Active Directory to Azure AD, using either Azure AD Connect or Entra Connect cloud sync tools.

Azure AD Connect

For information about the attributes that are synchronised by default see Attributes synchronized by Azure AD Connect.

You can enable Directory extension attribute sync and configure the attributes you wish to synchronise in the Azure AD Connect tool:

  1. Open Microsoft Azure Active Directory Connect
  2. Select Customise synchronization options and press Next

  3. Enter the credentials of an Azure AD Global Administrator and click Next

  4. Select your Active Directory details to connect and click Next

  5. Domain and OU Filtering will not need to be updated. Click next to proceed to the next step
  6. On the Optional Features pane, tick the Directory extension attribute sync option and select Next

  7. On the Directory Extensions pane, search for your desired attribute in the Available Attributes search box

    You may also want to add extensionAttribute1 (user) through to extensionAttribute15 (user) to Selected Attributes in addition to your required attributes

  8. Complete the wizard
Entra Connect Cloud Sync (formerly Azure AD Cloud Sync)

By default, the Entra Connect Cloud Sync tool will map all ExtensionAttribute(1-15) values in AD to the CustomAttribute(1-15) fields in Exchange Online.

The tool is also able to map any internal AD attribute to any of the CustomAttribute(1-15) fields.

Signature 365 cannot currently import custom fields created by Entra Connect Cloud Sync tool, any required attributes must be mapped to either of these variable sets.

To do this, you must follow these steps:

  1. Log on to the Entra Connect Sync portal and click on the Manage Entra Connect cloud sync option in the menu

  2. Select your current configuration

  3. Select the Attribute mapping menu item and find the AAD attribute that you wish to synchronise to - for example ExtensionAttribute15, and click the Edit button

  4. You must change the current mapping type to Direct, and map to the AD field that you wish to use - for example ipPhone

At the next sync, the fields will be populated in Azure AD, and the data will pull through to Signature 365.

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