Copilot in Outlook: Summarize, Draft, Coaching, and What the Works Council Asks

Copilot in Outlook summarizes long email threads, drafts messages from a short bullet-point list, and provides feedback on tone and clarity as you write. The features are available in Outlook on desktop, web, and mobile once an appropriate Copilot license model is purchased. For small and medium-sized businesses, this is typically the Microsoft 365 Copilot Business add-on to an existing Business plan. Before implementation, it is worth reviewing the works council's codetermination rights, since Copilot automatically analyzes email content. As of August 2026.

What can Copilot in Outlook actually do?

According to Microsoft, Copilot in Outlook covers three core functions: summarize, draft, and coaching. With long email threads, Copilot summarizes the key points and open questions so you don't have to read through each individual message. When writing a new email, you describe in bullet points what you want to communicate, and Copilot creates a complete draft from that, which you can then adjust for tone, length, and clarity, such as more formal, shorter, or more direct. The coaching function reviews an already-written draft and provides guidance on how tone, length, and clarity might come across to the recipient. According to Microsoft, all three functions are directly integrated into the familiar Outlook interface, so you stay in your normal work environment.

Which license do you need for Copilot in Outlook?

For business use, you need an additional Copilot license on top of your Microsoft 365 base subscription. Microsoft makes clear that purchasing Microsoft 365 Copilot requires a separate license for a qualifying Microsoft 365 plan. For smaller organizations with up to 300 users, Microsoft offers the Microsoft 365 Copilot Business add-on, which can be added to plans like Business Basic, Business Standard, or Business Premium. Alternatively, Microsoft 365 Business Standard and Business Premium plans already include Copilot as a complete package. According to Microsoft, Copilot in Outlook, Word, Excel, PowerPoint, and Teams is explicitly named as part of this offering. Without this additional license, users won't see Copilot features in Outlook, a basic Microsoft 365 Business subscription alone is not sufficient.

What does the works council need to know before you implement Copilot?

Copilot in Outlook automatically analyzes email content, and that is exactly what can trigger the works council's codetermination rights. According to Section 87 (1) No. 6 of the Works Constitution Act (BetrVG), the works council has a codetermination right when introducing and using technical facilities that are designed to monitor the behavior or performance of employees. Whether and to what extent this applies to Copilot depends on the specific use case, such as whether evaluations for individual persons are possible or usage data is logged. In practice, it is advisable to involve the works council early on and regulate its use in a works agreement rather than simply activating Copilot during ongoing operations. This assessment does not replace legal advice, for the specific design of a works agreement you should involve your legal department or a specialized law firm.

Where does Copilot in Outlook reach its limits?

Copilot does not replace substantive review, especially for legally relevant or sensitive emails you should always review drafts yourself. Summaries of long threads can shorten or incorrectly weight individual details, especially if the thread contains many topic changes. The coaching function evaluates tone and clarity, but it cannot judge whether a statement is technically correct or legally permissible. And without the additional Copilot license, all three functions remain invisible to your users, simply switching to a higher Microsoft 365 package without the Copilot add-on won't help here. If you want to introduce Copilot together with other AI tools in your organization in a structured way, you'll find support with NordFlux's AI consulting services for assistance with license selection, rollout, and works agreement.

Frequently Asked Questions about Copilot in Outlook

Do I need a separate add-on for Copilot in Outlook?

Yes, for business use you need an additional Copilot license on top of a qualifying Microsoft 365 plan, such as the Microsoft 365 Copilot Business add-on. A standard Microsoft 365 Business subscription alone does not unlock the features in Outlook.

Does Copilot also summarize very long email threads completely and correctly?

Copilot creates a summary of the most important points and open questions, but necessarily shortens details in the process. With long or thematically highly branched threads, you should understand the summary as guidance and, if in doubt, check the original text.

Must the works council approve before you implement Copilot in Outlook?

This depends on the specific use case, in principle Copilot as a technical facility with monitoring potential can trigger the codetermination right under Section 87 (1) No. 6 BetrVG. Early involvement of the works council and a works agreement are common in practice, but a legally secure assessment for your individual case should be made by a legal department or law firm.

Can Copilot in Outlook also adjust the tone of my emails?

Yes, both when drafting and via the coaching function you can ask Copilot to phrase an email more formally, shorter, or more directly. The final decision on content and tone remains with you, you review and send the text yourself. For more information on introducing Copilot across the entire Microsoft 365 environment, read about NordFlux's Microsoft Copilot services.