While you're creating an email template to be added to a campaign, you can use a text widget to populate a static or dynamic coupon code in your message.
To insert a static coupon code, simply type the desired code into the field after dragging and dropping a text widget into your template.

To insert a dynamic coupon code, select Insert Coupon Code in the text editor toolbar after dragging and dropping a text widget into your template.

Once you publish your template and pull it into your campaign on the Message tab, select "Add Rule" under the coupon block.

Select the previously uploaded coupon bank you want to draw codes from, and select "Apply Rule".

- See Import Data for more details on uploading coupon banks, or Coupon Management for more details on banks already available for use.