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All Tutorials /ChatGPT

How to Create a Product Marketing Message GPT

Updated on:
May 12, 2026
By:
Madhav Bhandari
Use this interactive demo to learn how to build a custom product marketing message GPT in ChatGPT.

Quick summary

A product marketing message GPT is a custom ChatGPT model configured with specific instructions, conversation starters, and knowledge files to generate on-brand marketing copy on demand. This step-by-step guide shows how to create, configure, and publish your own custom GPT inside ChatGPT in under 15 minutes.


Steps

  1. On ChatGPT's main interface, open the left-side panel and click Explore GPTs.
  2. Tap Create at the top-right corner to start building a new GPT.
  3. Switch the tab from Create to Configure to access manual setup options.
  4. Set a distinctive display photo by tapping the Add icon and selecting an image from your library.
  5. Enter a unique GPT Name and Description into their respective input fields.
  6. Click the Instructions input field and write a comprehensive description covering the purpose, behavior, and capabilities of your product marketing message GPT.
  7. Add relevant text prompt examples by typing them into the Conversation Starters input field.
  8. Scroll to the Knowledge section and click Upload Files to import external reference documents.
  9. Review the Capabilities section and tick the checkboxes for GPT functions you want to enable; optionally configure Actions for third-party app integrations.
  10. Navigate to the Preview Area, type a test prompt into the input box, and tap Submit to evaluate your GPT's output.
  11. If satisfied with the results, click Create at the top-right corner to finalize the GPT.
  12. Choose your preferred access configuration, then tap Save to proceed.
  13. Your product marketing message GPT is now created and published and ready to use.

📌 Why this matters

Building a dedicated product marketing message GPT inside ChatGPT lets marketing teams generate consistent, on-brand copy without starting from scratch every time. By embedding custom instructions, knowledge files, and conversation starters, the GPT acts as a always-available copywriting assistant trained on your specific product and messaging framework. This eliminates bottlenecks in the content creation process and ensures every output aligns with your positioning strategy. For product marketers, it means faster campaign execution, greater messaging consistency, and a scalable AI workflow that grows with your team.
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