Store → Products → Import ▾ → CSV.
- Upload the file. Shopify's product export, WooCommerce's and Square's are recognized, and their columns are matched for you.
- Match columns: change where any column goes, or choose "Don't import". The first product's values show next to each column.
- Preview: how many products, variants, photos and new categories will be added, and warnings (variants with no weight, products with no price, which come in as drafts).
- Import. It runs in the background, so you can close the page. Tick Put the products on to publish them; untick it to check the drafts first.
Good to know
- Variants are grouped by the product's web address (Shopify's Handle).
- Photos are copied into the site's media library.
- A product whose web address already exists is skipped.
- Undo (on the import page, or Import history) removes the import's products. Products that have already been sold are archived instead.
- CSV imports don't use credits.