AI for Marketing: The Complete Beginner’s Step-by-Step Guide
How to build a real marketing campaign — strategy, ad copy, creative and video — using free AI tools, even if you’ve never run an ad in your life.
What’s in this guide
- The 4-part AI marketing stack
- Step 1: Build your strategy
- Step 2: Write ad copy
- Step 3: Design your creative
- Step 4: Research competitors
- Step 5: Write an email sequence
- Step 6: Create a video ad
- Full workflow: Kemi’s campaign
- Full workflow: James’s campaign
- Tool comparison
- Mistakes to avoid
- FAQ
- Your assignment
If you’ve ever stared at a blank page trying to write an ad, or watched ad spend disappear with nothing to show for it, this guide is for you. We’re going to walk through exactly what to type, exactly what to click, and exactly what a finished campaign looks like — using tools that are free to start with.
The 4-part AI marketing stack
Every campaign, no matter how small your business is, needs four things in this order. Skip a step and the others get harder.
Below, each stage is broken into exact steps you can follow along with right now, with a real prompt to copy and a real example of what comes back.
Step 1: Build your marketing strategy
Get clear before you write a single ad
Tool: Claude or ChatGPT · Free · Takes under 2 minutes
Most people start by writing an ad. That’s backwards. Start by getting AI to help you define exactly who you’re talking to and what you want to say to them.
How to do it
- Open Claude or ChatGPT in a new tab.
- Copy the prompt below and fill in your own business details where you see the brackets.
- Paste it in and send it.
- Read the response and save your “ideal customer sentence” somewhere — you’ll reuse it in every step that follows.
“I run a [type of business] serving [target customer] in [location]. In under 200 words, give me: 1) my ideal customer in one sentence, 2) the single message that will make them stop scrolling, 3) a 5-post content plan for this week. Keep it practical, no jargon.”
“Ideal customer: busy small business owners in Lagos who dread doing their own books. Message: ‘Spend less time on spreadsheets, more time growing your business — bookkeeping handled, properly.’ Content plan: Mon — common bookkeeping mistake, Tue — client win story, Wed — quick tax tip, Thu — behind the scenes, Fri — client testimonial.”
Step 2: Write ad copy that converts
Turn your message into scroll-stopping copy
Tool: Claude or ChatGPT · Free · Takes under 2 minutes
Now that you know your message, ask for several different ways to say it. You want options to test, not one single guess.
How to do it
- Stay in the same Claude/ChatGPT conversation so it remembers your business details.
- Paste the prompt below.
- You’ll get three short ad versions — save all three, you’ll test them later.
“Write 3 short ad variations (under 40 words each) for aimed at [audience]. Each version should use a different hook: one curiosity-led, one problem-led, one results-led. End each with a clear call to action.”
“1) Curiosity: ‘The one bookkeeping habit most Lagos SMEs get wrong — and how to fix it this week.’ 2) Problem: ‘Still doing your own books at midnight? There’s a better way.’ 3) Results: ‘Clients save 6 hours a month after switching. Book a free consult today.'”
Step 3: Design your ad creative
Make it look professional — no design skill needed
Tool: Canva AI · Free tier · Takes 5 minutes
How to do it
- Open Canva and click Magic Design on the home screen.
- Paste one of your ad copy lines from Step 2 into the prompt box.
- Canva generates several layout options — pick the one closest to your brand colours.
- Swap in your logo and adjust the text size so it’s easy to read on a phone screen.
- Download as a JPG or PNG, sized for the platform you’re posting on.
Step 4: Research your competitors
Know what’s already working before you spend anything
Tool: Google Gemini · Free · Takes 2 minutes
How to do it
- Open Google Gemini.
- Paste the prompt below, naming three real competitors if you know them — or let Gemini suggest some.
- Look specifically for the gap: something competitors aren’t saying that you can own.
“Research 3 well-known competitors in [industry/location]. Summarise: what messaging they’re using, what platforms they’re most active on, and one gap in their approach I could use as my advantage.”
Step 5: Write a follow-up email sequence
Don’t let interested leads go cold
Tool: HubSpot AI Campaign Assistant (or Claude/ChatGPT) · Free tier · Takes 3 minutes
How to do it
- Open HubSpot’s free AI campaign tools, or stay in Claude/ChatGPT if you’d rather keep everything in one place.
- Paste the prompt below.
- Load the three emails into your email tool, spaced two to three days apart.
“Write a 3-email welcome sequence for new leads interested in [service]. Email 1: introduce and build trust. Email 2: show a quick win or case study. Email 3: clear offer with a deadline. Keep each email under 150 words.”
Step 6: Turn your copy into a video ad
Video ads outperform static images on most platforms
Tool: Google Flow (free) · or VideoExpress for a polished result
How to do it — free route
- Open Google Flow and paste your strongest ad line from Step 2.
- Let it generate a short 15-second video clip.
- Download and post directly — great for testing quickly at zero cost.
Full workflow: Kemi’s campaign, start to finish
Kemi
Kemi wanted more bookkeeping clients but had no budget for an agency. Here’s exactly what she did, in order.
-
1Ran the strategy prompt in Claude
Defined her ideal customer as “busy SME owners in Lagos who dread doing their own books.”
-
2Generated 3 ad copy variations
Picked the problem-led version: “Still doing your own books at midnight? There’s a better way.”
-
3Built the creative in Canva AI
Used Magic Design with her brand green and a simple growth-chart graphic.
-
4Checked competitors in Gemini
Found that local accountants weren’t speaking directly to small business owners — mostly generic “tax season” messaging. She rewrote her hook to speak to that exact gap.
-
5Launched on LinkedIn
Posted organically first to test the message, then boosted with a small budget once it got engagement.
Full workflow: James’s campaign, start to finish
James
James offers admin support to busy coaches and consultants. He wanted a steady stream of discovery calls without cold-pitching all day.
-
1Ran the strategy prompt in ChatGPT
Identified his audience as “UK coaches and consultants drowning in admin and inbox management.”
-
2Wrote a 3-email welcome sequence
Email 1 built trust, email 2 shared a client time-saved story, email 3 offered a free 20-minute audit with a deadline.
-
3Built a Facebook ad
Used the curiosity-led copy variation paired with a Canva AI creative.
-
4Turned the copy into a 15-second reel
Used Google Flow to generate a quick demo video, then linked it to his email opt-in.
Tool comparison
| Tool | Best for | Price |
|---|---|---|
| Claude / ChatGPT | Strategy, ad copy, personas, email sequences | Free tier |
| Canva AI | Ad creative and visual assets | Free tier |
| Google Gemini | Market and competitor research | Free |
| HubSpot AI Campaign Assistant | Email content and campaign ideas | Free tier |
| Google Flow | Quick AI-generated video ads | Free |
| VideoExpress | Polished branded video ads with consistent character, voice and music | One-time payment |
Mistakes to avoid
Targeting everyone. A message for “anyone who needs my service” lands with no one. Narrow it down to one clear customer.
Skipping the test. Run more than one ad version. Let the data tell you which message wins, don’t guess.
Ignoring the numbers. Check what’s actually getting clicks and replies, not just what feels good to post.
Copying competitors exactly. Use research to find a gap, not to repeat what’s already saturated.
Frequently asked questions
Do I need to pay for any of these tools to get started?
No. Every tool in this guide has a free tier that’s enough to run your first campaign. VideoExpress is the only paid option, and it’s entirely optional.
I don’t have a business yet — can I still follow this?
Yes. Use the strategy prompt with a business idea you’re considering. It’s a useful way to test whether a message resonates before you commit to anything.
How much should I spend on my first ad?
Start small. A modest test budget is enough to see which ad version gets the best response before you commit more money.
Which platform should I advertise on first?
Go where your audience already spends time. LinkedIn worked for Kemi’s B2B accounting clients; Facebook worked for James’s coach and consultant audience. Use the competitor research step to confirm where your audience is active.
Your assignment
- Run the strategy prompt for your own business (or business idea).
- Generate your 3 ad copy variations.
- Turn your favourite line into one creative in Canva AI.
- Post your strategy, copy and creative in the Fecund Circle WhatsApp community for feedback — before you spend anything on ads.
Keep building
You now have a complete, working AI marketing stack — strategy, copy, creative, research and distribution — without an agency and without a marketing degree. Tomorrow’s lesson builds on this with AI for Analytics, so you can track exactly what’s working and double down on it.
Ready to go further?
Join the Fecund Circle WhatsApp community, grab the AI Starter Guide on Amazon, or explore VideoExpress for client-ready video ads.
