Do Discounts From My Shopify Store Apply to Subscriptions Automatically?
Do discounts from my Shopify store apply to subscription automatically?
This can depend on how you are discounting your products:
Shopify's automatic discount codes apply automatically only on initial checkout only. They are not applied to existing subscriptions. Learn more about using discount codes with Bold Subscriptions.
Changing the product price from the Shopify admin product page does not affect existing subscribers. Only new customers will be able to subscribe to the discounted price.