Creating the discount
Step 1 - Open your store's Discounts page and click Create discount.
Step 2 - Scroll down to the Discount Kit section, which should now be available, and click Product volume.
Step 3 - Fill in the various settings and click Save.
Enabling theme components
Product Volume Table - Head to your theme editor and then to the product page. On the left-hand side, click Add block to add the Product Volume Table.
Product Volume Upsell (Plus Only) - Head to the checkout editor, click Add app on the left-hand side, and add the Product Volume Upsell component.