Shopify uses a product's category to work out tax obligations, and that same category becomes the product category in Google, Meta and TikTok feeds. Verifying them is the merchant's responsibility, including the ones suggested automatically. Taxo reads each product's title, description and images, then assigns the matching category from Shopify's Standard Product Taxonomy. It works across a whole catalogue in one run, shows the price first, and bills only what is applied.

• Categorize every product that has no category, across a whole catalogue
• Re-check the categories you already have and correct only what is wrong
• Categorize new products automatically as they are added to your store
• Target part of your catalogue by product status or by tag
• Review each suggestion before it is applied, or let confident ones through

Holdout runs A/B tests on your storefront without touching theme files. Describe the change you want, preview both versions, choose the audience and the goal, then launch. It measures conversion rate, revenue per visitor, add-to-cart and order value, and applies the winner as a runtime rule you can roll back at any time. Every test is held to a minimum duration and a calibrated threshold. When the data falls short, Holdout says so instead of naming a winner.

• No theme code. Changes run at display time and leave nothing behind.
• Promotion stays locked until duration, volume and data checks all pass.
• Roll back to the original version in one click, at any point in the test.