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Rule Types

PredictCart offers five distinct rule types, each designed for a specific purpose. A single rule belongs to exactly one type.

Product Pricing​

Applies price adjustments directly to individual products or product groups in the cart. The adjusted price is reflected per-item.

Use cases:

  • Volume discounts ("Buy 5+, get 20% off each")
  • Tiered pricing ("First 3 at full price, next 3 at 10% off")
  • BOGO offers ("Buy 2, Get 1 Free")
  • Per-item fixed price or amount discounts

Product Pricing rules run at woocommerce_before_calculate_totals and modify the product's unit price before WooCommerce computes line totals.

Cart Discounts​

Applies a percentage or fixed-amount discount to the cart total, shown as a negative fee line. No coupon codes are required.

Use cases:

  • "10% off entire cart when total exceeds $100"
  • "$5 flat discount for returning customers"
  • Seasonal cart-wide promotions

Cart Discounts are applied via woocommerce_cart_calculate_fees.

Checkout Fees​

Adds dynamic fees to the checkout based on conditional logic.

Use cases:

  • "Small order fee for carts under $10"
  • "Payment method surcharge"
  • "Late hour processing fee"

Checkout Fees are also applied via woocommerce_cart_calculate_fees, at a later priority than Cart Discounts.

BOGO​

Buy X Get Y offers that automatically add free or discounted items to the cart when purchase conditions are met.

Use cases:

  • "Buy 2, Get 1 Free" on the same product
  • "Buy a T-shirt, get socks at 50% off" (cross-product)
  • Tiered BOGO with percentage or fixed-amount discounts on receive items

BOGO rules support same-product (XX) and cross-product (XY) modes with configurable purchase and receive quantities, pricing methods, and product eligibility.

Free Shipping​

Offers free shipping based on cart value, quantity, weight, customer role, or specific products.

Use cases:

  • "Free shipping on orders over $50"
  • "Free shipping for VIP customers"
  • "Free shipping on specific product categories"

Free Shipping rules apply at the shipping method level and can be combined with shipping zones and methods.