Request: An app that promotes a free (or discounted) add-on on the product page, lets shoppers add the offer directly, and automatically adds the correct SKU (stock keeping unit) to the cart so inventory tracks properly. Also needs scheduling (start/end times). The built-in Shopify discount flow is insufficient because it requires customers to manually add the extra item and they may not notice the offer.
Suggestions:
Build a custom app tailored to these requirements (promotion display, add-to-cart logic, SKU handling, scheduling).
Use an existing “gift with purchase” / “auto add to cart” app from the Shopify App Store, which can auto-add products to carts based on main item purchases.
Status: No decision made. Options are custom development vs. off-the-shelf apps; key needs are on-page promotion, automatic add, accurate inventory via SKU, and time-based availability. Discussion remains open.
To inform customers about the current free gift offer and automatically add the gift to the cart when they meet the conditions, you can set up a Buy X Get Y promotion using a gift-with-purchase app like BOGOS.
This app allows you to display the active gift offer via the “Today Offer” widget, so customers clearly see the promotion.
When a customer purchases the main product, the free gift will be auto-added to the cart without any manual action needed. The correct SKU will be added, so inventory is synced properly and easy for you to manage.