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ChatGPT Prompt for Writing an Internal Memo

Writing an internal memo is a delicate exercise that requires clarity, conciseness, and a tone adapted to the company culture. Whether it's announcing a reorganization, a new partnership, or an HR policy update, the memo must convey essential information while maintaining employee engagement. ChatGPT becomes a valuable ally here: by providing it with context, target audience, and desired tone, you get a structured and professional first draft in seconds. The AI helps you overcome writer's block, find the right diplomatic wording, and ensure a logical structure (context, announcement, impact, next steps). Instead of starting from scratch, you iterate on a solid foundation, significantly reducing writing time while improving the quality of the final message. This prompt is designed to produce ready-to-send memos, adapted to the codes of French corporate communication.

The prompt

ChatGPT

You are an expert in corporate internal communication. Write a professional internal memo following these parameters:

Subject of the announcement: [DESCRIBE_THE_SUBJECT — e.g., launch of a new telework program]
Target audience: [e.g., all employees / managers / sales team]
Desired tone: [e.g., formal and reassuring / enthusiastic / neutral and factual]
Sender: [e.g., Human Resources Department / CEO / Executive Committee]
Key information to include: [LIST_THE_ESSENTIAL_POINTS_TO_COMMUNICATE]
Effective date: [IF_APPLICABLE]

Structure the memo as follows:

  1. Subject line: a clear and direct line
  2. Introduction: briefly contextualize why this memo is sent
  3. Message body: develop the key information with short paragraphs
  4. Impact for employees: explain concretely what changes for them
  5. Next steps: expected actions or timeline
  6. Contact: person or department to contact for questions

Use professional French without unnecessary jargon. Sentences should be short and direct. Avoid excessive passive voice. The memo must fit on one page maximum.

Personalize this prompt with Léa

Answer 3 questions and Léa tailors the prompt to your situation.

Why it works

This prompt works thanks to the expert role assignment that anchors ChatGPT in the corporate communication register. The imposed six-section structure ensures that all essential elements of a memo are covered, while the contextual parameters (tone, audience, sender) allow fine personalization. The stylistic constraints (short sentences, no jargon, one page maximum) avoid the usual pitfalls of AI and produce directly usable text.

Expected result

You will obtain a complete and structured internal memo, ready to be distributed after a quick review. The document will include a clear subject line, a contextualized introduction, a factual development of key information, a section dedicated to the concrete impact for employees, next steps, and a contact point. The tone will be consistent with your instructions and adapted to your company culture.

Variants by level

FAQ

How to adjust the tone of the memo based on the gravity of the announcement?
Specify in your prompt the sensitivity level of the topic. For a positive announcement (promotion, business success), ask for an enthusiastic and celebratory tone. For a neutral topic (procedure update), opt for a factual and direct tone. For a sensitive topic (layoffs, restructuring), specify an empathetic, transparent, and reassuring tone. You can also provide ChatGPT with an example of a past memo from your company so it aligns with your communication culture.
Is the memo generated by ChatGPT directly usable or does it need rework?
The generated memo provides a solid foundation that typically covers 80 to 90% of the work. You will still need to verify the accuracy of factual information (dates, names, figures), adjust some wording to your company's specific vocabulary, and validate the tone with your management. Always plan a review by a colleague before distribution, as you would for any manually written memo.
Can I use ChatGPT to write memos containing confidential information?
Caution is advised. If you use the public version of ChatGPT, avoid including personal data, non-public financial figures, or sensitive strategic information. You can work around this issue by using placeholders (e.g., [REVENUE_AMOUNT] or [EMPLOYEE_NAME]) that you will replace manually after generation. For companies with strict confidentiality requirements, prefer ChatGPT Enterprise or the OpenAI API which offer contractual guarantees that data will not be used for training.

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How to use this prompt

  1. Copy the prompt with the button above.
  2. Paste it into ChatGPT, Claude or your favorite AI assistant.
  3. Replace the bracketed variables with your details, then refine the result.

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