Changing output format for some database properties in Exchange Online cmdlets
From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.Rollout
Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".
Schedule dates changed in the text
Date phrases in schedule sentences differ between the versions this installation saw- Seen 28 Jan 2026
October 2025, November 2025→ February 2026, April 2026 - Seen 21 Aug 2025
August 2025→ October 2025, November 2025
Read from date phrases in Microsoft's text, not from notice metadata. A changed phrase can be a moved rollout, a new milestone or just rewording; "What changed" below shows which.
What the notice says
Microsoft’s text, safely structuredUpdated February 6, 2026: We have updated the content. The scope of the change remains unchanged. Thank you for your patience.
We're updating the output format of certain properties returned by Exchange Online PowerShell cmdlets to improve performance and align with backend service optimizations. This change reduces unnecessary data retrieval and enhances consistency across services.
When this will happen
Rollout will begin in February 2026 (previously October 2025) and complete by April 2026 (previously November 2025).
How this affects your organization
This update changes the string format of specific properties returned by Exchange Online cmdlets. For example, the Database property in the output of Get-Mailbox will change from:
Database : APCP153DG038-db080
to:
Database : APCP153.PROD.OUTLOOK.COM/7ad9dea1-26b7-4088-ad73-708c219faff6
This change applies only to Exchange Online. On-premises Exchange environments are not affected.
We do not expect organizations to have dependencies on these output formats. These values are informational only and not intended for admin control or automation. No changes to user workflows, admin configurations, or help desk processes are expected.
What you can do to prepare
No action is required. There are no settings or controls to manage this change. If you have scripts that parse these property values, we recommend reviewing them to ensure compatibility.
The complete list of cmdlets impacted is as follows
| Cmdlet | Output Type |
|---|---|
| Add-DistributionGroupMember | Microsoft.Exchange.Data.Directory.Management.ReducedRecipient |
| Get-DistributionGroupMember | Microsoft.Exchange.Data.Directory.Management.ReducedRecipient |
| Get-FederatedOrganizationIdentifier | Microsoft.Exchange.Data.Directory.Management.FederatedOrganizationIdWithDomainStatus |
| Get-Mailbox | Microsoft.Exchange.Data.Directory.Management.Mailbox |
| New-Mailbox | Microsoft.Exchange.Data.Directory.Management.MailboxPlan |
| Get-MailboxPlan | Microsoft.Exchange.Data.Directory.Management.MailboxPlan |
| Get-MailUser | Microsoft.Exchange.Data.Directory.Management.MailUser |
| New-MailUser | Microsoft.Exchange.Data.Directory.Management.MailUser |
| Get-Recipient | Microsoft.Exchange.Data.Directory.Management.ReducedRecipient |
| Add-RoleGroupMember | Microsoft.Exchange.Data.Directory.Management.ReducedRecipient |
| Get-RoleGroupMember | Microsoft.Exchange.Data.Directory.Management.ReducedRecipient |
| New-SyncMailPublicFolder | Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder |
The affected properties for each Output Type are as follows:
| Output Type | Property |
|---|---|
| Microsoft.Exchange.Data.Directory.Management.MailUser | MailboxMoveSourceArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.MailUser | MailboxMoveSourceMDB |
| Microsoft.Exchange.Data.Directory.Management.MailUser | MailboxMoveTargetArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.MailUser | MailboxMoveTargetMDB |
| Microsoft.Exchange.Data.Directory.Management.ReducedRecipient | Database |
| Microsoft.Exchange.Data.Directory.Management.ReducedRecipient | MailboxMoveSourceArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.ReducedRecipient | MailboxMoveSourceMDB |
| Microsoft.Exchange.Data.Directory.Management.ReducedRecipient | MailboxMoveTargetArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.ReducedRecipient | MailboxMoveTargetMDB |
| Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder | Database |
| Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder | HomeMTA |
| Microsoft.Exchange.Data.Directory.Management.FederatedOrganizationIdWithDomainStatus | DelegationTrustLink |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | Database |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | PreviousDatabase |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | DisabledArchiveDatabase |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | MailboxMoveTargetMDB |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | MailboxMoveSourceMDB |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | MailboxMoveTargetArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.Mailbox | MailboxMoveSourceArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | Database |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | PreviousDatabase |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | DisabledArchiveDatabase |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | MailboxMoveTargetMDB |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | MailboxMoveSourceMDB |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | MailboxMoveTargetArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.MailboxPlan | MailboxMoveSourceArchiveMDB |
| Microsoft.Exchange.Data.Directory.Management.MailUser | DisabledArchiveDatabase |
What changed
Between archive captures, newest firstUpdated
January 28,February 6, 2026: We have updatedtimelines for enforcement.the content. The scope of the change remains unchanged. Thank you for your patience. … affected properties for each Output Type are as follows: Output Type Property Microsoft.Exchange.Data.Directory.Management.MailUser MailboxMoveSourceArchiveMDB Microsoft.Exchange.Data.Directory.Management.MailUser MailboxMoveSourceMDB Microsoft.Exchange.Data.Directory.Management.MailUser MailboxMoveTargetArchiveMDB Microsoft.Exchange.Data.Directory.Management.MailUser MailboxMoveTargetMDB Microsoft.Exchange.Data.Directory.Management.ReducedRecipient Database Microsoft.Exchange.Data.Directory.Management.ReducedRecipient MailboxMoveSourceArchiveMDB Microsoft.Exchange.Data.Directory.Management.ReducedRecipient MailboxMoveSourceMDB Microsoft.Exchange.Data.Directory.Management.ReducedRecipient MailboxMoveTargetArchiveMDB Microsoft.Exchange.Data.Directory.Management.ReducedRecipient MailboxMoveTargetMDB Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder Database Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder HomeMTA Microsoft.Exchange.Data.Directory.Management.FederatedOrganizationIdWithDomainStatus DelegationTrustLink Microsoft.Exchange.Data.Directory.Management.Mailbox Database Microsoft.Exchange.Data.Directory.Management.Mailbox PreviousDatabase Microsoft.Exchange.Data.Directory.Management.Mailbox DisabledArchiveDatabase …Updated
August 21, 2025:January 28, 2026: We have updated timelines for enforcement. The scope of thetimeline.change remains unchanged. Thank you for your patience. We're updating the output format of certain … enhances consistency across services. When this will happen: Rollout will begin inOctober 2025February 2026 (previouslyAugust)October 2025) and complete by April 2026 (previously November2025.2025). How this affects your organization: This update changes the string format of … that parse these property values, we recommend reviewing them to ensure compatibility. The complete list of cmdlets impacted is as follows: Cmdlet Output Type Add-DistributionGroupMember Microsoft.Exchange.Data.Directory.Management.ReducedRecipient Get-DistributionGroupMember Microsoft.Exchange.Data.Directory.Management.ReducedRecipient Get-FederatedOrganizationIdentifier Microsoft.Exchange.Data.Directory.Management.FederatedOrganizationIdWithDomainStatus Get-Mailbox Microsoft.Exchange.Data.Directory.Management.Mailbox New-Mailbox Microsoft.Exchange.Data.Directory.Management.MailboxPlan Get-MailboxPlan Microsoft.Exchange.Data.Directory.Management.MailboxPlan Get-MailUser Microsoft.Exchange.Data.Directory.Management.MailUser New-MailUser Microsoft.Exchange.Data.Directory.Management.MailUser Get-Recipient Microsoft.Exchange.Data.Directory.Management.ReducedRecipient Add-RoleGroupMember Microsoft.Exchange.Data.Directory.Management.ReducedRecipient Get-RoleGroupMember Microsoft.Exchange.Data.Directory.Management.ReducedRecipient New-SyncMailPublicFolder Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder The affected properties for each Output Type are as follows: Output Type Property Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder Database Microsoft.Exchange.Data.Directory.Recipient.ADPublicFolder HomeMTA Microsoft.Exchange.Data.Directory.Management.FederatedOrganizationIdWithDomainStatus DelegationTrustLink Microsoft.Exchange.Data.Directory.Management.Mailbox Database Microsoft.Exchange.Data.Directory.Management.Mailbox PreviousDatabase Microsoft.Exchange.Data.Directory.Management.Mailbox DisabledArchiveDatabase Microsoft.Exchange.Data.Directory.Management.Mailbox MailboxMoveTargetMDB Microsoft.Exchange.Data.Directory.Management.Mailbox MailboxMoveSourceMDB Microsoft.Exchange.Data.Directory.Management.Mailbox MailboxMoveTargetArchiveMDB Microsoft.Exchange.Data.Directory.Management.Mailbox MailboxMoveSourceArchiveMDB Microsoft.Exchange.Data.Directory.Management.MailboxPlan Database Microsoft.Exchange.Data.Directory.Management.MailboxPlan PreviousDatabase Microsoft.Exchange.Data.Directory.Management.MailboxPlan DisabledArchiveDatabase Microsoft.Exchange.Data.Directory.Management.MailboxPlan MailboxMoveTargetMDB Microsoft.Exchange.Data.Directory.Management.MailboxPlan MailboxMoveSourceMDB Microsoft.Exchange.Data.Directory.Management.MailboxPlan MailboxMoveTargetArchiveMDB Microsoft.Exchange.Data.Directory.Management.MailboxPlan MailboxMoveSourceArchiveMDB Microsoft.Exchange.Data.Directory.Management.MailUser DisabledArchiveDatabase- Tags
Feature update, Admin impact→ Updated message, Feature update, Admin impact
Updated August 21, 2025: We have updated the timeline. Thank you for your patience. We're updating the output format of certain properties returned by Exchange Online … enhances consistency across services. When this will happen: Rollout will begin in
AugustOctober 2025 (previously August) and complete by November 2025. How this affects your organization: This update changes the string format …- Tags
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