Adding Product Max Limit
Reason for using: Use this technique if you have a store where the fan base may order large quantities of products in order to resell. This will limit the total number of 
units that can be purchased per transaction. This technique was used on the Babymetal store.
units that can be purchased per transaction. This technique was used on the Babymetal store.
- Set Product Max Quantity Globally
Navigate to Themes > Customize Theme > Products > Product Max Quantity
2. Set Product Max Quantity on a Product Level
Open the product that requires a max limit. Products > Products > Product Name.
Change the theme template from product to product.quantity-limit-"number to limit".
Save product & repeat.