Mixed Quantity Rules: Category + Product Levels

Use Case Summary

The store owner needs mixed quantity pricing: a category-level rule for clothing that charges a base fee for the first 3 items and then an incremental charge for additional units.

But when customers order a hoodie and a t-shirt together, they will get a lower shipping charge. It will encourage them to buy these products.

Conditions Table

Condition	Quantity Range	Result
Product category: Clothing	> 1 unit	$3 for the first 3 items, then $2 for each 4 items
Product: T-shirt AND Hoodie	1–3 units	$2
Product: T-shirt AND Hoodie	4–6 units	$5
Product: T-shirt AND Hoodie	7+ units	$8

Step-by-Step Setup

For this complex scenario, you will need two methods to work together.

1. Go to WowShipping.
2. Click Create shipping method, set the name, zone, and type of shipping method
3. Add a Cart quantity condition, recreate the scenario, and add shipping cost.
4. Additional condition for product category: Clothing
5. Set an advanced display rule when the cart doesn’t contain a hoodie and t-shirt

6. Create another method, set the name, zone, and type of shipping method
7. Now add a Cart quantity condition, recreate the scenario, and add shipping cost.
8. Set advanced display rule for Product Contains: T-shirt and Hoodie
9. Save the method]

Final Outcome 

🟢 Customer buys 2 T-shirts → T-shirt rule applies: $2

🟢 Customer buys 5 Hoodies → Hoodie rule applies: $5

🟢 Customer buys 3 generic clothing items (not T/H) → Category rule: $3

🟢 Customer buys 7 generic clothing items → Category rule: $3 + $2 (one extra block of up to 4) = $5

🟢 Customer buys 11 generic clothing items → $3 + $2 × 2 (two extra blocks) = $7