To create a collection using a product tag to use with Discounts, please follow these steps:
- From Shopify's admin, select Products.
- Select Collections.
- Select Create collection.
- Enter a Title.
- Enter a Description (optional).
- Under "Conditions", select Product tag in the first drop-down box.
- Leave is equal to in the second drop-down box.
- Enter the code specified in Product Discount in the third box.
Note: Repeat Steps 6-8 and use the tag "DISCOUNT_HIDDEN_PRODUCT" to create a collection of duplicate & hide items.
- Select Manage next to "Sales channels".
- Select Online Store to deselect it.
Note: Leave this option selected if you want to show this collection of sale products on your site.
- Select Done.
- Select Save.