Hello, I am minakshi here !!
I need to add automatic discount in my shopify website, I want to add 20% off in first purchase of product. discount only allow first time and first purchase of product . Please help me out with the issue
Automatic discounts can not be set up to limit their usage per customer. If you wish to limit the discount to new customers then you’ll want to create a manual discount code for your new customers. The discount code can be provided as a reward for signing up for your newsletter, or through a pop-up on your site. You can learn more about manual discounts here.