MarketingFREE

AI Marketing Agent in n8n: Write 10 ad variations When a new landing page is published and Post It to Slack

An n8n workflow that fires when a new landing page is published, then an AI agent generates ten ad headline + body variations to test — giving you a batch of ad copy to A/B test in minutes. No code: import the JSON, connect your apps, and it runs 24/7.

difficulty Beginnersetup 25 minresult A batch of ad copy to A/B test in minutes—
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  1. 1

    Trigger when a new landing page is published

    A RSS Trigger starts the workflow the moment a new landing page is published.

  2. 2

    Hand it to the AI agent

    An AI Agent node running OpenAI generates ten ad headline + body variations to test. The prompt is pre-written and scoped to this one job so results stay consistent.

  3. 3

    Deliver the ad copy

    The result is sent to Slack — ready for a human to approve.

  4. 4

    Add a safety net (optional)

    Insert an IF/human-approval step before anything is published or emailed, so you stay in control until you trust the output.

Frequently asked questions

How do I import the workflow into n8n?

Download the JSON, then in n8n open a new workflow, choose ⋯ → Import from file, and select it. Every trigger, node and connection appears on the canvas; you just add your credentials and activate it.

How much does the AI part cost to run?

Pennies. Each run sends a small amount of text to the model, so most teams spend a few dollars a month even at hundreds of runs. You set the model and can cap volume in n8n, so costs never surprise you.

Can I trust the AI to get the ad copy right?

The prompt is tightly scoped to one job and you can add a human-approval step in n8n before anything is sent or published. Start with review-mode for a week, and once you trust the output, switch it to fully automatic.

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