Instantly generate better subject lines with ClickUp AI

You’ve written a great newsletter that your subscribers will find valuable, and now you’re stuck on the subject line. You want something that grabs attention, but your brain is fried after pouring your energy into the content.

You open up a new tab, search for inspiration, maybe even ask ChatGPT for help. Then before you know it, you’ve lost your flow and ended up watching fight videos on 𝕏.

All that switching costs mental energy. The distractions take you away from your work. And publishing your newsletter takes 3x as long as it should.

ClickUp have now got AI custom fields. These are fields that actively generate or interpret info based on prompts you write. And they’ve let me keep my entire newsletter workflow in one place. Here’s how it works:

Draft in ClickUp: I write my newsletter in the description field of a ClickUp task, just like always.
AI Subject Line Button: I’ve set up a custom field with an AI prompt. Once my draft is ready, I click a button right inside ClickUp.
Instant Suggestions: ClickUp AI reads my newsletter draft and generates subject line ideas for me, right there in the task. No extra tabs, no copy-pasting, no distractions.

This small change has made a huge difference. I save time every week, but more importantly, I can stay in flow. I can review the AI’s suggestions, tweak them if needed, and move on to scheduling or publishing without breaking my workflow.

If you’re a content creator, marketer, or anyone who sends regular newsletters, you know how important it is to protect your focus. Every tool you add should make your process smoother, not more complicated. ClickUp’s AI custom fields do exactly that. They let you automate the repetitive parts of your workflow, so you can spend more time on what matters. Family time, work, and Baldur’s Gate 3.

I’ve noticed my subject lines are better and more consistent. I’m not scrambling at the last minute or settling for something generic. And because everything happens in ClickUp, I have a record of past subject lines, which makes it easy to avoid repeats and see what’s worked before.

How You Can Try This

If you’re already using ClickUp, setting up an AI custom field is simple. Create a new custom field, add your prompt (mine asks the AI to generate 3 subject lines based on the newsletter draft), and you’re set. Next time you finish a newsletter, just click the button and let the AI do the heavy lifting.

If you’re not using ClickUp yet, this is one of those features that makes it more than just a project management tool. It’s a true content hub, where you can write, organise, and even optimise your newsletters without ever leaving your main workspace.

Final Thoughts

The best tools are the ones you barely notice because they fit so well into your process. ClickUp’s AI custom fields have become one of those for me. If you’re looking to streamline your newsletter workflow and take the pain out of subject lines, give it a try. Your future self will thank you.

Reply to this newsletter if you want the exact AI prompt or have questions about setting this up.