Microsoft adds Office docs to Copilot app while removing Outlook AI theming feature
Microsoft expands Copilot capabilities for document creation in its standalone app but is deprecating the dynamic Outlook theming tool announced two years ago.
Key points
- The Copilot app now generates Office documents that users can edit while maintaining an active AI conversation.
- Microsoft is removing the "Themes by Copilot in Outlook" feature, which used AI to adjust interface visuals based on user location and weather.
- New Copilot document creation features are currently limited to customers using the Chat and Cowork plans in the Frontier release track.
Microsoft is expanding the functionality of its standalone Copilot application by integrating direct Office document creation capabilities, while simultaneously discontinuing an AI-driven theming feature within Outlook. The company announced these changes in a recent Message Center post, signaling a shift in how artificial intelligence tools are deployed across its productivity suite.
The new capability allows users to input prompts into the Copilot app to generate documents in applications such as Word. Once created, the document opens in the appropriate Office application, enabling the user to edit the content while the Copilot conversation remains active in the background. This integration aims to streamline the workflow between generating content via AI and refining it manually.
Context and background on feature changes
Microsoft has confirmed that the previously available "Themes by Copilot in Outlook" feature is being deprecated. The company originally launched this tool less than two years ago, marketing it as the first instance of dynamic AI-generated theming in productivity applications. The feature allowed users with a Copilot license to customize their Outlook interface with imagery inspired by their local environment.
The Outlook theming tool could update dynamically based on factors such as the current weather conditions, provided that location permissions were enabled. Microsoft previously suggested that this feature would allow users to personalize their workspace similarly to how one might decorate a physical office with plants or artwork. However, the company has now decided to remove this capability from the Outlook experience.
Who is affected by these updates
The new document creation features within the Copilot app are not yet available to all users. Microsoft states that the functionality is currently rolling out only to customers subscribed to the Chat and Cowork plans. These users must also be part of the Frontier release track to access the new capabilities, indicating a phased rollout strategy rather than a general availability launch.
Security and IT professionals may note that the new feature relies on OneDrive for document storage and collaboration. The source material suggests that this reliance on OneDrive, rather than SharePoint, could be a concern for some enterprise customers who prefer the latter for document management. Documents created via this method can be shared with other users, who can also use Copilot prompts to modify the content.
What should you do?
Administrators should review their current Copilot licensing and release track settings to determine if their organization has access to the new document creation features. Those relying on the Outlook theming feature should prepare for its removal, as Microsoft has indicated it is being discontinued. Teams should also evaluate whether storing documents via OneDrive in this workflow meets their enterprise security and compliance requirements.
What to do and how to stay safe: Microsoft
- Verify if your organization is enrolled in the Frontier release track and holds Chat or Cowork licenses to access new Copilot document features.
- Audit Outlook configurations to identify reliance on the deprecated AI theming feature and prepare users for its removal.
- Review data governance policies regarding OneDrive versus SharePoint to ensure the new document workflow aligns with enterprise security standards.
- Monitor Microsoft Message Center posts for further updates on the rollout timeline and any additional feature deprecations.
Step-by-step guide: Prompt Injection Warning Signs: How to Spot AI Manipulation
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Will the new Copilot document creation feature work with SharePoint?
No, the source material indicates the system relies on OneDrive for storage and collaboration, which may differ from enterprise preferences for SharePoint.
When was the Outlook theming feature originally launched?
Microsoft announced "Themes by Copilot in Outlook" less than two years ago, describing it as a dynamic AI-generated theming tool.
Who can currently use the new Copilot app document features?
The feature is rolling out only to customers with Chat and Cowork licenses who are part of the Frontier release track.
