Start with creating a discount automation. Navigate to your Shopify dashboard > Apps > Personal Discount. Then click Add automation button, select Campaign Monitor as your Email Service Provider and the Campaign Type is Welcome new subscribers.
Specify the details of your automation. Take a look at the article on if you want to learn more.
Hit Save and copy the code snippet to the clipboard when you set it up.
Below you can see, how to add the Personal Discount code snippet to your email template.
Now export the template as an HTML doc.
Switch over to your Campaign Monitor dashboard. Navigate to Automations and hit Create an automation button. Select Welcome journey. In the next step make sure that you have selected a subscribers list that is connected with your Shopify store. Click Continue.
Now import your email template to the automation. Scroll down the left section and click Change template, next Import HTML at the bottom.
It's high time we activated our automation.
When your customer joins the newsletter, they will receive an email with a discount code.