Generate Meta & TikTok Ad Copy with OpenAI and Slack Approval Workflow

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Built by Chris Rudy Chris Rudy
Created on June 08, 2026

Description

Who's it for

Marketing teams, copywriters, and agencies who need to quickly generate and iterate on ad copies for Meta and TikTok campaigns. Perfect for brands that want AI-powered copy generation with human review and approval built into the workflow.

What it does

This workflow automates the ad copy creation process by:
Collecting brand and product information through a form
Using AI to generate tailored ad copies based on brand type (Fashion or Problem-Solution)
Sending copies to Slack for team review and approval
Handling revision requests with feedback incorporation
Limiting revisions to 3 rounds to maintain efficiency

How to set up

Configure your OpenAI credentials in the OpenAI nodes
Set up Slack integration and select your review channel in all Slack nodes
Customize the AI prompts in the OpenAI nodes to match your brand voice
Test the form to ensure file uploads and data collection work properly
Activate the workflow when ready

Requirements

OpenAI API access (GPT-3.5 or GPT-4)
Slack workspace with appropriate channel permissions
Self-hosted n8n instance (for file upload functionality)

How to customize

Adjust the AI prompts in OpenAI nodes to match your specific industry or brand guidelines
Modify the revision limit in the "Edit Fields: Revision Counter Max 3" node
Add additional brand types in the form dropdown and corresponding AI nodes
Customize Slack messages to match your team's communication style

Nodes Used (2)

OpenAI
@n8n/n8n-nodes-langchain.openAi
Slack
n8n-nodes-base.slack