Vista Checkout Rules helps merchants increase sales by creating advanced Automatic discount rules without bundles with multiple conditions based on customer tags/segments, quantity, cart total, tiered discounts, BXGY & BOGO. Build custom discounts that trigger from real products, not virtual SKUs. No inventory issues. Customize checkout by hiding, sorting, or renaming payment & shipping methods using fast Shopify Functions. Add validation rules to prevent overselling, enforce order limits.