Sync userPrincipalName fo Azure AD to custom attribute in on Prem AD

Marco Milone 51 Reputation points
2023-05-19T10:48:21.65+00:00

Hi, I created a custom Attribute on the active directory on Prem following this guide: https://windowstechno.com/how-to-create-custom-attributes-in-active-directory/ . The local attribute created is called userPrincipalNameAzureAD . I need to modify the sync rules so that when the sync happens the Azure AD "userPrincipalName" attribute is copied to the active directory's "userPrincipalNameAzureAD" attribute on prem. I tried to edit the rules of the connector but the drop-down menu doesn't offer me "userPrincipalNameAzureAD" from the Local active directory. Does anyone have any suggestions?

Best Regards

Microsoft Entra
Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
20,450 questions
0 comments No comments
{count} votes

3 answers

Sort by: Most helpful
  1. Andy David - MVP 144.7K Reputation points MVP
    2023-05-19T10:56:04.1133333+00:00

    You can create directory extensions in AADConnect to sync on-prem> Azure:

    https://learn.microsoft.com/en-us/azure/active-directory/hybrid/connect/how-to-connect-sync-feature-directory-extensions

    It wont sync from Azure > on-prem however...

    0 comments No comments

  2. Marco Milone 51 Reputation points
    2023-05-19T12:07:58.2066667+00:00

    Hi, i need to sync as follow

    Azure AD > OnPrem AD

    userPrincipalName > userPrincipalNameAzureAD

    The attribute extensions sync OnPrem > Azure

    Thansk and Recarda

    0 comments No comments

  3. Andy David - MVP 144.7K Reputation points MVP
    2023-05-19T12:13:37.2933333+00:00

    Sorry, thats not possible with any built-in architecture. There is no automatic sync in that direction (Azure> On-Prem) and there is no writeback for Azure properties like that using AADConnect or AD Cloud Sync.

    0 comments No comments