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.
Monk can create an offer where buying specific products or products from a collection gives the customer the option to add another product as a free gift or get a discount on it instead.
The offer can be displayed directly on the product pages, so customers don’t have to know about the promotion or manually search for the second item. The actual product gets added to the cart, so inventory is handled properly as well.
Monk also lets you schedule the offer with a specific start date/time and end date/time, so the promotion can run automatically without you having to enable or disable it manually.