Reward customers for submitting a form by dropping a product variant into their cart at $0. The gift stays free at checkout even if they add other paid items.
How it works
When the customer submits, StoreForms adds the gift variant to their cart and writes a signed token to the cart. A Shopify Discount Function reads the token at checkout and zeros the price of the gift line. Customers see $0.00 in the cart and at checkout.
Setup
In the form editor, open the Actions card.
Toggle on Add free gifts.
Click Select gifts and pick one or more product variants.
Save.
One-time setup: enable the discount function
The first time you enable free gifts, StoreForms installs an automatic discount in your store under Discounts. You can also toggle this on or off any time at Settings → Free gifts.