Hybrid Users Not Showing in GAL

Question

On-prem users synced to Azure AD do not appear in the Global Address List (GAL).

Answer 1

Hello @Eric09921,

Thank you for posting your query on Microsoft Q&A.

If on-premises users synced to Azure AD are not appearing in the Global Address List (GAL), it could be due to several reasons. Below are some common causes to check:

1.Incorrect Attribute Values:

• Users must have the ShowInAddressBook attribute populated with appropriate values.
• The HiddenFromAddressListsEnabled attribute should be set to false (Azure AD/Exchange Online).
• The msExchHideFromAddressLists attribute should not be set to true (On-premises AD).

2.Sync or Hybrid Configuration Issues:

• Azure AD Connect synchronization errors or misconfigured filtering rules might prevent the users' attributes from syncing properly.
• Improper hybrid configuration between Exchange On-Premises and Exchange Online.

Note: please provide more details for better solutions

I hope this information is helpful. Please feel free to reach out if you have any further questions.
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