(Update)Microsoft 365 and Microsoft Teams: Unified management of Teams apps in Teams, Outlook, and the Microsoft 365 app

Updated October 23, 2025: We have updated the timeline and content below. Thank you for your patience. 

  What it is

Microsoft is rolling out a new feature to streamline how app and agent availability is managed across Teams, Outlook, and Microsoft 365 Copilot. Until now, IT admins configured availability settings separately in both the Microsoft 365 Admin Center (MAC) and the Teams Admin Center (TAC), which led to mismatches. With this update, you’ll be able to unify availability policies for apps and agents across both portals, making app management more consistent and efficient.

This message is associated with Microsoft 365 Roadmap ID 393931 and 503105.

When this will happen:

We will begin rolling out this feature late September 2025 and expect to complete by end of June 2026 (previously mid-November 2025).

1. Phase 1 – Default Tenant Unification

We will begin rolling out this feature at the end of September 2025. This initial phase targets tenants that have never modified their organization-wide defaults, app availability, or block/unblock in either the Microsoft 365 admin center or the Teams admin center. At the end of this phase, agent and app manageability will be unified across both Microsoft 365 admin center and Teams admin center ensuring agent and Microsoft 365 apps availability policies are in alignment for all future administrative changes. This message is associated with Microsoft 365 Roadmap ID 393931.

2. Phase 2 – Modified Tenants Unification

We will begin rolling out this feature early November 2025. This phase targets tenants that have previously modified their organization-wide defaults, app availability, or block/unblock settings in either admin center. These tenants will be transitioned to a unified management experience across both Microsoft 365 and Teams admin centers.

• For tenants with agent or app availability differences across both admin centers, a wizard in the Teams admin center will help identify affected agents and apps and guide through resolving discrepancies.
• For tenants with no agent or app availability differences across both admin centers, guidance will be provided to transition to unified availability policy.

This message is associated with Microsoft 365 Roadmap ID 503105.

3. Phase 3 – Automatic Unification

Tenants that haven’t transitioned as part of Phase 1 & Phase 2, will be automatically moved to unified app agent management. We will update this post with a timeline and more details later.

How this will affect your organization

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified agent app management, you will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

• You’ll gain a consolidated view of agent and Microsoft 365 app availability across both Microsoft 365 and Teams admin centers.
• Changes made in either admin center to the agent and app availability will automatically apply across all supported hosts.
• Organization-wide defaults for both admin centers will be in sync and govern app availability across Teams, Outlook, and the Microsoft 365 copilot app.

 What you need to do to prepare

To ensure a smooth transition, review your tenant-level and individual agent/app settings (app allow/block & user availability) in both the Microsoft 365 Admin Center and the Teams Admin Center. If different departments within your organization manage these settings, we suggest coordinating efforts to complete the review collaboratively.

This update will be rolled out automatically by the stated date, and no immediate action is required. However, it's a good time to update any internal documentation related to agent and app management policies. 

Learn more: Unified agent and app availability management across Microsoft 365 and Teams Admin Centers - Microsoft Teams | Microsoft Learn 

Updated October 1, 2025: We have updated the content documentation link. Thank you for your patience. 

  What it is

Microsoft is rolling out a new feature to streamline how app and agent availability is managed across Teams, Outlook, and Microsoft 365 Copilot. Until now, IT admins configured availability settings separately in both the Microsoft 365 Admin Center (MAC) and the Teams Admin Center (TAC), which led to mismatches. With this update, you’ll be able to unify availability policies for apps and agents across both portals, making app management more consistent and efficient.

This message is associated with Microsoft 365 Roadmap ID 393931 and 503105.

When this will happen:

We will begin rolling out this feature late September 2025 and expect to complete by mid-November 2025.

1. Phase 1 – Default Tenant Unification

We will begin rolling out this feature at the end of September 2025. This initial phase targets tenants that have never modified their organization-wide defaults, app availability, or block/unblock in either the Microsoft 365 admin center or the Teams admin center. At the end of this phase, agent and app manageability will be unified across both Microsoft 365 admin center and Teams admin center ensuring agent and Microsoft 365 apps availability policies are in alignment for all future administrative changes. This message is associated with Microsoft 365 Roadmap ID 393931.

2. Phase 2 – Modified Tenants Unification

We will begin rolling out this feature at the end of October 2025. This phase targets tenants that have previously modified their organization-wide defaults, app availability, or block/unblock settings in either admin center. These tenants will be transitioned to a unified management experience across both Microsoft 365 and Teams admin centers.

• For tenants with agent or app availability differences across both admin centers, a wizard in the Teams admin center will help identify affected agents and apps and guide through resolving discrepancies.
• For tenants with no agent or app availability differences across both admin centers, guidance will be provided to help maintain unified availability policy for all future changes.

This message is associated with Microsoft 365 Roadmap ID 503105.

3. Phase 3 – Automatic Unification

Tenants that haven’t transitioned as part of Phase 1 & Phase 2, will be automatically moved to unified app agent management. We will update this post with a timeline and more details later.

How this will affect your organization

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified agent app management, you will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

• You’ll gain a consolidated view of agent and Microsoft 365 app availability across both Microsoft 365 and Teams admin centers.
• Changes made in either admin center to the agent and app availability will automatically apply across all supported hosts.
• Organization-wide defaults for both admin centers will be in sync and govern app availability across Teams, Outlook, and the Microsoft 365 copilot app.

 What you need to do to prepare

To ensure a smooth transition, review your tenant-level and individual agent/app settings (app allow/block & user availability) in both the Microsoft 365 Admin Center and the Teams Admin Center. If different departments within your organization manage these settings, we suggest coordinating efforts to complete the review collaboratively.

This update will be rolled out automatically by the stated date, and no immediate action is required. However, it's a good time to update any internal documentation related to agent and app management policies. 

Learn more: Unified agent and app availability management across Microsoft 365 and Teams Admin Centers - Microsoft Teams | Microsoft Learn 

Updated September 12, 2025: We have updated the content. Thank you for your patience.

What it is

Microsoft is rolling out a new feature to streamline how app and agent availability is managed across Teams, Outlook, and Microsoft 365 Copilot. Until now, IT admins configured availability settings separately in both the Microsoft 365 Admin Center (MAC) and the Teams Admin Center (TAC), which led to mismatches. With this update, you’ll be able to unify availability policies for apps and agents across both portals, making app management more consistent and efficient.

This message is associated with Microsoft 365 Roadmap ID 393931 and 503105.

When this will happen:

We will begin rolling out this feature late September 2025 and expect to complete by mid-November 2025.

1. Phase 1 – Default Tenant Unification

We will begin rolling out this feature at the end of September 2025. This initial phase targets tenants that have never modified their organization-wide defaults, app availability, or block/unblock in either the Microsoft 365 admin center or the Teams admin center. At the end of this phase, agent and app manageability will be unified across both Microsoft 365 admin center and Teams admin center ensuring agent and Microsoft 365 apps availability policies are in alignment for all future administrative changes. This message is associated with Microsoft 365 Roadmap ID 393931.

2. Phase 2 – Modified Tenants Unification

We will begin rolling out this feature at the end of October 2025. This phase targets tenants that have previously modified their organization-wide defaults, app availability, or block/unblock settings in either admin center. These tenants will be transitioned to a unified management experience across both Microsoft 365 and Teams admin centers.

• For tenants with agent or app availability differences across both admin centers, a wizard in the Teams admin center will help identify affected agents and apps and guide through resolving discrepancies.
• For tenants with no agent or app availability differences across both admin centers, guidance will be provided to help maintain unified availability policy for all future changes.

This message is associated with Microsoft 365 Roadmap ID 503105.

3. Phase 3 – Automatic Unification

Tenants that haven’t transitioned as part of Phase 1 & Phase 2, will be automatically moved to unified app agent management. We will update this post with a timeline and more details later.

How this will affect your organization

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified agent app management, you will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

• You’ll gain a consolidated view of agent and Microsoft 365 app availability across both Microsoft 365 and Teams admin centers.
• Changes made in either admin center to the agent and app availability will automatically apply across all supported hosts.
• Organization-wide defaults for both admin centers will be in sync and govern app availability across Teams, Outlook, and the Microsoft 365 copilot app.

 What you need to do to prepare

To ensure a smooth transition, review your tenant-level and individual agent/app settings (app allow/block & user availability) in both the Microsoft 365 Admin Center and the Teams Admin Center. If different departments within your organization manage these settings, we suggest coordinating efforts to complete the review collaboratively.

This update will be rolled out automatically by the stated date, and no immediate action is required. However, it's a good time to update any internal documentation related to agent and app management policies. 

Updated September 8, 2025: We have updated the title and content. Thank you for your patience.

What it is

Microsoft is rolling out a new feature to streamline how app and agent availability is managed across Teams, Outlook, and Microsoft 365 Copilot. Until now, IT admins configured availability settings separately in both the Microsoft 365 Admin Center (MAC) and the Teams Admin Center (TAC), which led to mismatches. With this update, you’ll be able to unify availability policies for apps and agents across both portals, making app management more consistent and efficient.

This message is associated with Microsoft 365 Roadmap ID 393931.

When this will happen:

We will begin rolling out this feature late September 2025 and expect to complete by mid-November 2025.

1. Phase 1 – Default Tenant Unification

We will begin rolling out this feature at the end of September 2025. This initial phase targets tenants that have never modified their organization-wide defaults, app availability, or block/unblock in either the Microsoft 365 admin center or the Teams admin center. At the end of this phase, agent and app manageability will be unified across both Microsoft 365 admin center and Teams admin center ensuring agent and Microsoft 365 apps availability policies are in alignment for all future administrative changes. This message is associated with Microsoft 365 Roadmap ID 393931.

2. Phase 2 - Availability Alignment

We will begin rolling out this feature at the end of October 2025. This phase targets tenants that have previously modified their organization-wide defaults, app availability, or block/unblock settings in either admin center. These tenants will be transitioned to a unified management experience across both Microsoft 365 and Teams admin centers.

• For tenants with agent or app availability differences across both admin centers, a wizard in the Teams admin center will help identify affected agents and apps and guide through resolving discrepancies.
• For tenants with no agent or app availability differences across both admin centers, guidance will be provided to help maintain unified availability policy for all future changes.

3. Phase 3 – Automatic Unification

Tenants that haven’t transitioned as part of Phase 1 & Phase 2, will be automatically moved to unified app agent management. We will update this post with a timeline and more details later.

How this will affect your organization

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified agent app management, you will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

• You’ll gain a consolidated view of agent and Microsoft 365 app availability across both Microsoft 365 and Teams admin centers.
• Changes made in either admin center to the agent and app availability will automatically apply across all supported hosts.
• Organization-wide defaults for both admin centers will be in sync and govern app availability across Teams, Outlook, and the Microsoft 365 copilot app.

 What you need to do to prepare

To ensure a smooth transition, review your tenant-level and individual agent/app settings (app allow/block & user availability) in both the Microsoft 365 Admin Center and the Teams Admin Center. If different departments within your organization manage these settings, we suggest coordinating efforts to complete the review collaboratively.

This update will be rolled out automatically by the stated date, and no immediate action is required. However, it's a good time to update any internal documentation related to agent and app management policies. 

Updated August 27, 2025: We have updated the content. Thank you for your patience. 

 In 2023, we introduced Microsoft Teams apps that are compatible with Microsoft Outlook and the Microsoft 365 App (manifest version v1.13 or higher). Before this rollout, admin changes made in the Integrated apps section of the Microsoft 365 admin center would only affect these Teams apps in Outlook and the Microsoft 365 app. Similarly, changes made in the Teams admin center would exclusively affect Teams. Starting in June 2024, we will roll out Unified App Management to streamline the management of these apps across Teams, Outlook and the Microsoft 365 App, so they are consistently available across all supported clients.

This message is associated with Microsoft 365 Roadmap ID 393931.

[When this will happen:]

This rollout will happen in two major phases. Unified App Management can apply only to tenants that have migrated to app centric management in Teams admin center, as communicated in MC688930 (Updated) Teams admin center: App centric management and changes to app permission policies (November 2023).

• Phase 1 | General Availability (Worldwide): We will begin rolling out this feature end of September 2025. This initial phase targets tenants that have never modified their organization-wide defaults, app availability, or block/unblock in either the Microsoft 365 admin center or the Teams admin center. At the end of this phase, agent and app manageability will be unified across both Microsoft 365 admin center and Teams admin center ensuring agent and M365 apps availability configuration policies are in alignment for all future administrative changes.
• Phase 2: We will update this post with a timeline and more details in August 2025 (previously May 2025).  

[How this will affect your organization:]

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified App Management, we will be consolidating app catalog management into a single platform. You will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

What you can expect

1. App catalog enhancements: Apps will start showing hosts where they are available: Teams, Outlook, or the Microsoft 365 app.
2. Organization-wide settings: App availability default settings will now apply to apps used in Teams, Outlook, and Microsoft 365 app.
3. App installs: Apps deployed from the Integrated apps page in Microsoft 365 admin center will be preinstalled in all applicable hosts for the app. Unlike app preinstallation in the Teams App setup policy, new app installs will provide access to the preinstalled apps, similar to deploying the app for Outlook and the Microsoft 365 App.. For more details on app deployment, refer to MC795355 Microsoft Teams admin center: App centric management for app installation and changes to app setup policies (May 2024)].
4. App availability: Managing app availability will apply to all applicable app hosts.
5. App block/unblock: Blocking or unblocking apps will apply to all applicable app hosts.
6. Consolidation of existing app settings: All existing app settings will be unified between Integrated apps (MAC) and Manage apps (TAC) pages. Merge rules can be found in Manage apps that work across Teams, Outlook, and Microsoft 365 | Microsoft Learn. These changes cannot be rolled back.
7. Consolidation report: After further review we have decided not to proceed with this change at this time. We apologize for any inconvenience.

[What you need to do to prepare:]

We recommend that you review app and tenant settings in the Microsoft 365 admin center and the Teams admin center. If these are managed by different departments in your organization, we recommend conducting these reviews collaboratively.

We also recommend that you review the merge rules and consider their potential impact on apps in your organization. Make any necessary adjustments to unify them in advance, if the merge rules in this message do not align with your expectations.

This rollout will happen automatically by the specified date with no admin action required before the rollout. You may want to update any relevant documentation as appropriate.

Updated August 13, 2025: We have updated the content. Thank you for your patience.

In 2023, we introduced Microsoft Teams apps that are compatible with Microsoft Outlook and the Microsoft 365 App (manifest version v1.13 or higher). Before this rollout, admin changes made in the Integrated apps section of the Microsoft 365 admin center would only affect these Teams apps in Outlook and the Microsoft 365 app. Similarly, changes made in the Teams admin center would exclusively affect Teams. Starting in June 2024, we will roll out Unified App Management to streamline the management of these apps across Teams, Outlook and the Microsoft 365 App, so they are consistently available across all supported clients.

This message is associated with Microsoft 365 Roadmap ID 393931.

[When this will happen:]

This rollout will happen in two major phases. Unified App Management can apply only to tenants that have migrated to app centric management in Teams admin center, as communicated in MC688930 (Updated) Teams admin center: App centric management and changes to app permission policies (November 2023).

• Phase 1 | General Availability (Worldwide): We will begin rolling out late-January 2025 (previously mid-December 2024) is now on hold (previously late March 2025), with further guidance to be provided by late May 2025 (previously late April). This phase applies to tenants with no modified settings in either the Microsoft 365 admin center (Integrated apps) or the Teams admin center for organization-wide defaults, app deployment, app availability, or block/unblock. No merge rules apply to these tenants, but after this phase, any app management setting configured in either admin centers will apply to all relevant hosts.
• Phase 2: We will update this post with a timeline and more details in August 2025 (previously May 2025).  

[How this will affect your organization:]

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified App Management, we will be consolidating app catalog management into a single platform. You will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

What you can expect

1. App catalog enhancements: Apps will start showing hosts where they are available: Teams, Outlook, or the Microsoft 365 app.
2. Organization-wide settings: App availability default settings will now apply to apps used in Teams, Outlook, and Microsoft 365 app.
3. App installs: Apps deployed from the Integrated apps page in Microsoft 365 admin center will be preinstalled in all applicable hosts for the app. Unlike app preinstallation in the Teams App setup policy, new app installs will provide access to the preinstalled apps, similar to deploying the app for Outlook and the Microsoft 365 App.. For more details on app deployment, refer to MC795355 Microsoft Teams admin center: App centric management for app installation and changes to app setup policies (May 2024)].
4. App availability: Managing app availability will apply to all applicable app hosts.
5. App block/unblock: Blocking or unblocking apps will apply to all applicable app hosts.
6. Consolidation of existing app settings: All existing app settings will be unified between Integrated apps (MAC) and Manage apps (TAC) pages. Merge rules can be found in Manage apps that work across Teams, Outlook, and Microsoft 365 | Microsoft Learn. These changes cannot be rolled back.
7. Consolidation report: After further review we have decided not to proceed with this change at this time. We apologize for any inconvenience.

[What you need to do to prepare:]

We recommend that you review app and tenant settings in the Microsoft 365 admin center and the Teams admin center. If these are managed by different departments in your organization, we recommend conducting these reviews collaboratively.

We also recommend that you review the merge rules and consider their potential impact on apps in your organization. Make any necessary adjustments to unify them in advance, if the merge rules in this message do not align with your expectations.

This rollout will happen automatically by the specified date with no admin action required before the rollout. You may want to update any relevant documentation as appropriate.

Updated August 7, 2025: We have updated the content and rollout timeline below. Thank you for your patience.

In 2023, we introduced Microsoft Teams apps that are compatible with Microsoft Outlook and the Microsoft 365 App (manifest version v1.13 or higher). Before this rollout, admin changes made in the Integrated apps section of the Microsoft 365 admin center would only affect these Teams apps in Outlook and the Microsoft 365 app. Similarly, changes made in the Teams admin center would exclusively affect Teams. Starting in June 2024, we will roll out Unified App Management to streamline the management of these apps across Teams, Outlook and the Microsoft 365 App, so they are consistently available across all supported clients.

This message is associated with Microsoft 365 Roadmap ID 393931.

[When this will happen:]

This rollout will happen in two major phases. Unified App Management can apply only to tenants that have migrated to app centric management in Teams admin center, as communicated in MC688930 (Updated) Teams admin center: App centric management and changes to app permission policies (November 2023).

• Phase 1 | General Availability (Worldwide): We will begin rolling out late-January 2025 (previously mid-December 2024) is now on hold (previously late March 2025), with further guidance to be provided by late May 2025 (previously late April). This phase applies to tenants with no modified settings in either the Microsoft 365 admin center (Integrated apps) or the Teams admin center for organization-wide defaults, app deployment, app availability, or block/unblock. No merge rules apply to these tenants, but after this phase, any app management setting configured in either admin centers will apply to all relevant hosts.
• Phase 2: We will update this post with a timeline and more details in August 2025 (previously May 2025).  

[How this will affect your organization:]

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified App Management, we will be consolidating app catalog management into a single platform. You will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

What you can expect

1. App catalog enhancements: Apps will start showing hosts where they are available: Teams, Outlook, or the Microsoft 365 app.
2. Organization-wide settings: App availability default settings will now apply to apps used in Teams, Outlook, and Microsoft 365 app.
3. App installs: Apps deployed from the Integrated apps page in Microsoft 365 admin center will be preinstalled in all applicable hosts for the app. Unlike app preinstallation in the Teams App setup policy, new app installs will provide access to the preinstalled apps, similar to deploying the app for Outlook and the Microsoft 365 App. [For more details on app deployment, refer to MC795355 Microsoft Teams admin center: App centric management for app installation and changes to app setup policies (May 2024)].
4. App availability: Managing app availability will apply to all applicable app hosts.
5. App block/unblock: Blocking or unblocking apps will apply to all applicable app hosts.
6. Consolidation of existing app settings: All existing app settings will be unified between Integrated apps (MAC) and Manage apps (TAC) pages. Merge rules can be found in Manage apps that work across Teams, Outlook, and Microsoft 365 | Microsoft Learn. These changes cannot be rolled back.
7. Consolidation report: After further review we have decided not to proceed with this change at this time. We apologize for any inconvenience.

[What you need to do to prepare:]

We recommend that you review app and tenant settings in the Microsoft 365 admin center and the Teams admin center. If these are managed by different departments in your organization, we recommend conducting these reviews collaboratively.

We also recommend that you review the merge rules and consider their potential impact on apps in your organization. Make any necessary adjustments to unify them in advance, if the merge rules in this message do not align with your expectations.

This rollout will happen automatically by the specified date with no admin action required before the rollout. You may want to update any relevant documentation as appropriate.

Updated June 26, 2025: We are actively working on the rollout timeline for this feature and anticipate sharing an update by late July 2025.

In 2023, we introduced Microsoft Teams apps that are compatible with Microsoft Outlook and the Microsoft 365 App (manifest version v1.13 or higher). Before this rollout, admin changes made in the Integrated apps section of the Microsoft 365 admin center would only affect these Teams apps in Outlook and the Microsoft 365 app. Similarly, changes made in the Teams admin center would exclusively affect Teams. Starting in June 2024, we will roll out Unified App Management to streamline the management of these apps across Teams, Outlook and the Microsoft 365 App, so they are consistently available across all supported clients.

This message is associated with Microsoft 365 Roadmap ID 393931.

[When this will happen:]

This rollout will happen in two major phases. Unified App Management can apply only to tenants that have migrated to app centric management in Teams admin center, as communicated in MC688930 (Updated) Teams admin center: App centric management and changes to app permission policies (November 2023).

• Phase 1 | General Availability (Worldwide): We will begin rolling out late-January 2025 (previously mid-December 2024) is now on hold (previously late March 2025), with further guidance to be provided by late May 2025 (previously late April). This phase applies to tenants with no modified settings in either the Microsoft 365 admin center (Integrated apps) or the Teams admin center for organization-wide defaults, app deployment, app availability, or block/unblock. No merge rules apply to these tenants, but after this phase, any app management setting configured in either admin centers will apply to all relevant hosts.
• Phase 2: We will update this post with a timeline and more details in May 2025 (previously April 2025).  This phase is applicable to tenants with app settings that have differences between Microsoft 365 admin center (Integrated apps) and Teams admin center.

[How this will affect your organization:]

Before this rollout, managing Teams apps that work in Outlook and the Microsoft 365 app was fragmented between the Integrated apps page in the Microsoft 365 admin center for Outlook and the Microsoft 365 app, and the Teams admin center for Teams. This sometimes resulted in different settings for the same app in the two admin centers. With Unified App Management, we will be consolidating app catalog management into a single platform. You will be able to manage apps on the Integrated apps page in the Microsoft 365 admin center or in the Teams admin center, and any changes made in either admin center will synchronize.

What you can expect

1. App catalog enhancements: Apps will start showing hosts where they are available: Teams, Outlook, or the Microsoft 365 app.
2. Organization-wide settings: App availability default settings will now apply to apps used in Teams, Outlook, and Microsoft 365 app.
3. App installs: Apps deployed from the Integrated apps page in Microsoft 365 admin center will be preinstalled in all applicable hosts for the app. Unlike app preinstallation in the Teams App setup policy, new app installs will provide access to the preinstalled apps, similar to deploying the app for Outlook and the Microsoft 365 App. [For more details on app deployment, refer to MC795355 Microsoft Teams admin center: App centric management for app installation and changes to app setup policies (May 2024)].
4. App availability: Managing app availability will apply to all applicable app hosts.
5. App block/unblock: Blocking or unblocking apps will apply to all applicable app hosts.
6. Consolidation of existing app settings: All existing app settings will be unified between Integrated apps (MAC) and Manage apps (TAC) pages. Merge rules can be found in Manage apps that work across Teams, Outlook, and Microsoft 365 | Microsoft Learn. These changes cannot be rolled back.
7. Consolidation report: After further review we have decided not to proceed with this change at this time. We apologize for any inconvenience.

[What you need to do to prepare:]

We recommend that you review app and tenant settings in the Microsoft 365 admin center and the Teams admin center. If these are managed by different departments in your organization, we recommend conducting these reviews collaboratively.

We also recommend that you review the merge rules and consider their potential impact on apps in your organization. Make any necessary adjustments to unify them in advance, if the merge rules in this message do not align with your expectations.

This rollout will happen automatically by the specified date with no admin action required before the rollout. You may want to update any relevant documentation as appropriate.