Yes, Magento 2 Share Cart extension can integrate with promotions and discount codes. Customers can share their cart with friends or colleagues, and any applicable promotions, coupons, or discounts remain active. It ensures that shared carts reflect the correct pricing and offers. Store owners can track usage and encourage social sharing while maintaining accurate discounts. By integrating with promotions, Webkul's Magento 2 Share Cart helps boost sales, improve user experience, and make sharing deals simple and reliable for customers.