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Fix Bahamas Users Missing from Dynamic Distribution Group in M365

Maira Mehtab Sep 22, 2026 869 views

Question details

The user needs to resolve an issue where users located in the Bahamas are unexpectedly excluded from a Microsoft 365 Dynamic Distribution Group that is filtered by country.

Product: Microsoft 365 / Microsoft Entra ID
Device & OS: not provided
Scenario: Managing a Dynamic Distribution Group filtered by country and mailbox status.
Observed behavior: Users with the country set to Bahamas are missing from the group, and Microsoft Graph returns a blank country value for these specific users.

Before you start

Ensure you have the necessary administrator roles, such as Exchange Administrator or Global Administrator, in Microsoft 365 to view and edit user attributes and distribution groups.

Solution 1Recommended

Verify and Update Country Attributes in Microsoft Entra ID

Check if the country attribute is correctly populated in Entra ID and update any missing or blank values.

Dynamic Distribution Groups rely on accurately populated user properties. If Microsoft Graph is returning a blank value for the country attribute, the user will be excluded from any group filtered by that specific country.

Access the Admin Center

Locate the affected user

Navigate to 'Users' > 'All users' and search for a user based in the Bahamas who is missing from the group.

Verify country attribute

Click on the user's profile to open it, go to the 'Properties' tab, and check the 'Usage location' and 'Country or region' fields.

Update and save

If the country is blank or incorrect, edit the field to properly reflect 'Bahamas' and save the changes.

Propagation Time: Changes made to user attributes in Entra ID may take up to 24 hours to fully propagate and reflect in the Dynamic Distribution Group membership list.

Solution 2

Review the Dynamic Distribution Group Recipient Filter

Ensure the filter logic for the distribution group accurately captures the intended country values without syntax errors.

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Frequently Asked Questions

Why are users with 'Bahamas' as their country returning a blank value in Microsoft Graph?

This can happen if the country attribute is not correctly synced from an on-premises Active Directory setup or if it was modified improperly in Microsoft Entra ID. Checking the user's properties directly in Entra ID is the best way to verify the stored value.

How long does it take for Dynamic Distribution Group membership to update?

After making changes to user attributes in Microsoft Entra ID, it can take anywhere from a few hours up to 24 hours for the new membership list to fully recalculate and propagate across Exchange Online.

How can I check the updated members of a Dynamic Distribution Group immediately?

You cannot manually force a true real-time update in Exchange Online. However, you can use Exchange Online PowerShell (specifically the Get-DynamicDistributionGroupMember cmdlet) to preview the calculated list based on current filters and updated attributes.

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