My current issue now is applying discount to the products that was added to cart.
I have something in my mind like
Solution 1: Create Shopify Automatic discount, add all the collections needed when building aquarium and set if 5 or more items are in the cart, apply discount. Problem with this approach is customers can only just buy 5 items from one collection.
Solution 2: Just apply automatic discount to the most expensive collection which is the aquariums then there should be at least 5 items in the caret. The problem with this one is my client wants to apply discounts to multiple products from different collection.
Solution 3: I don't know if this is possible, can I apply discount on add to cart like passing a discount parameter in the AJAX request?
Let me know other approach I can take or guides I can look through. Apply discounts to products added to cart if at least one product from 5 collections is in that cart