Auto Add to Cart FAQ
Frequently asked questions about the Auto Add to Cart / Free Gift With Purchase feature. For setup, see that article. For known issues and fixes, see Troubleshooting Auto Add to Cart.
Why doesn't the free gift come back after the customer removes it?
By default, Auto Add to Cart remembers when a customer manually removes an auto-added item and will not re-add it again during that browsing session.
This is intentional behavior designed to let customers dismiss unwanted free gifts or add-ons.
If you want removed gifts to return automatically whenever the customer still qualifies for the promotion, enable:
Theme Editor → App embeds → Add to Cart Embed → Re-add items after manual removal
Once enabled, the app will continue re-checking eligibility and automatically restore the free gift after cart updates, refreshes, or navigation events.
Why can't it be based on the subtotal after other discounts?
Why can't I base a discount on the subtotal after other discounts?
The auto add to cart feature uses the subtotal before any other discounts are applied as the basis for its calculation. This is because the Shopify Function API calculates product discounts in parallel, without any knowledge of the results of other discounts.
There are 2 components to this feature:
- JavaScript (JS) code that auto adds items to the cart.
- A Shopify Functions discount.
Even though the JS code has visibility into the cart's total after other discounts, we still use the subtotal before any other discounts. Otherwise, there would be unreconcilable inconsistency between the two components, which would cause tons of confusion.
Can auto add to cart offers combine with other discounts?
Yes. They combine with product, order, and shipping discounts. If you would like to be able to change this, please reach out to us.
Can the customer remove the auto-added items?
Yes. We’ve implemented a feature in our app that prevents items from being added back to the cart if the customer removes them. If anything besides our app removes an item from the cart, our app will refrain from re-adding items from that specific "Add to Cart" step during that user's session.
What happens to the free gift if the customer removes the trigger product from the cart?
The gift is removed too. The cart no longer qualifies for the promotion, so the app cleans it up.
Do I need the "Checkout auto add to cart" app block for automatic offers?
We recommend it on Shopify Plus. The Add to Cart Embed manages gifts while the customer is on your Online Store. The checkout block covers a case the embed can't see: the cart stops qualifying at checkout. For example, your offer is for first-time customers, and Shopify recognizes a returning customer at checkout. The block removes the gift so the customer isn't charged for it.
Requirements
- Shopify Plus. Shopify only offers app blocks in these checkout steps to Shopify Plus stores, so on other plans the block doesn't appear in the checkout editor.
- The Add to Cart Embed enabled on your Online Store theme. It still adds gifts on the Online Store and remembers when a customer removes one.
How to add it
- In Shopify admin, open Settings > Checkout. Under Configurations, click Edit on your active checkout.
- In the checkout editor's left sidebar, click Add block (for example under Order summary, next to the discount section).
- In the block list, find Regios Discounts and choose Checkout auto add to cart.
- Click Save. Shopify only applies the block to the checkout you save.
The block has no settings and shows nothing to customers.
Can I use a "Buy now" button that goes straight to checkout?
Gifts are added by the Add to Cart Embed on your Online Store, so a button that skips the cart can skip the gift too. Have your button add the product with /cart/add.js, wait for the regios-dopp:auto-add-to-cart:update event on window (we fire it after adding the gift), then send the customer to /checkout.
Can the cart drawer refresh when items are added/removed?
It's theme-specific.
Unfortunately, every theme and cart drawer app has a completely different approach for managing the cart display state. Therefore, we would have to add dedicated integrations for each. We can only support this for a finite number of themes at a time.
If we don't have a dedicated integration for your theme/cart drawer app, you'll need to write custom code. Our app will dispatch a regios-dopp:auto-add-to-cart:update event on the window after adding/removing items to/from the cart. We recommend adding custom code to your cart to listen for this event and trigger a reload of the cart/cart drawer section on your site. For more information, please read this closed thread in our public feedback board.
Why do I see some lines of code on my Cart page when using the Auto Add to Cart feature?
Those are private line item properties. Most themes hide these out of the box. You may need to reach out to the developer of your theme to get assistance with editing their cart liquid code. This behavior is theme specific and is not actually an issue in our app.
I want a create an Auto Add to Cart discount logic that adds 1 free gift per 1 quantity of item purchased. Two for Two, Three for Three and so on.
How to Auto Add Multiple Gifts Based on Quantity/Price
Does Auto To Add To Cart work on Headless Shopify setups?
Unfortunately, our app requires the Shopify Online Store to use the app embeds, which means it is not compatible with headless setups. For more information, read about Headless Shopify Compatibility.
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Updated on: 26/10/2026
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