Summarize mail chains, structure documentation and search in an internal corpus with Copilot Chat

What was done

The Microsoft study of 30 September 2025 (Emmanuel Néré, Director of Innovation and Strategic Transformation; Zineb Taleb, responsible for the GenAI programme) describes an office automation use distinct from the sinister voice assistant already identified. "100% of employees are equipped with Copilot Chat on their workstation, and 3,700 of them already benefit from Microsoft 365 Copilot. "70 per cent of our workforce have taken charge of their daily work, from which they design an average of 15 prompts per user per week. "Summary of mail or information chains, structure or produce documentation or communications, but also seek accurate information within a particularly rich background and documentary corpus.Cognitive Factory: 17 cases of business use in production, about 30 targeted by the end of 2025; about 50 agents Copilot Studio for more specific cases. 300 ambassadors.

Before you start

Tool cited by the source: Microsoft 365 Copilot / Copilot Chat. Fill in the bracketed items: [coller], [synthèse / réponse / note interne]. Strip confidential data that is not needed and check your tool’s access terms. Features and plans can change.

The method, in three steps.

1. 01

   Gather the context

   Spot the bracketed items in the prompt ([coller], [synthèse / réponse / note interne]) and prepare what they ask for.

2. 02

   Adapt the prompt

   Copy the prompt below, replace the bracketed items, then paste it into the AI assistant you use. The cited tool (Microsoft 365 Copilot / Copilot Chat) is not necessarily available to the public..

3. 03

   Reread before using

   Reread the result, correct it if needed and keep the final decision. Caveats are detailed below.

Your starting point.

Replace the bracketed items, then adapt the proposal to your situation. This prompt is written by the iadujour desk It is not a quotation from the source.

Mail chain or notes to be processed: [coller]. Objective: [synthèse / réponse / note interne].

1. Summarizes facts, decisions and open questions in 10 lines.
2. Proposes a response or note, without adding unwritten commercial commitment.
3. Lists what is missing (room, date, contact person).

What deserves your attention

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