FAQ
Applies to: TreStack Checkout, every plan
Updated: 17 October 2026
Do I need Shopify Plus? Only for the checkout page itself: checkout page blocks, gifts, upsells in checkout and checkout branding need the Growth or Pro plan on a store on Shopify Plus. Thank you and order status page blocks, the post-purchase page, rules and cart links work on any Shopify plan with Starter. On a store not on Shopify Plus, Starter also includes upsells and surveys on the thank you and order status pages. See Plans and billing.
Does the app change my theme's code? No. Blocks are Shopify checkout extensions you place in Shopify's checkout editor, and rules run as Shopify Functions. Nothing is added to your theme.
Where do I see which blocks are live? On Home, under Overview, App blocks placed counts the blocks placed on your checkout, thank you and order status pages. Select it to see the list.
Do I have to open the checkout editor every time I change a block? No. Once a block is placed and its profile picked, changes you save in the app reach your checkout by themselves.
Can I use the same block twice with different content? Yes. Place the block twice in the checkout editor and pick a different profile for each. See App blocks.
Can I copy my setup to another store? Yes, per item: Export profile on a block's profile, and Export for upsells selected on the Upsells page. In the other store, use Import profile on the block's page and More actions > Import from a file on Upsells, then check products, collections and translations.
Where do buyers' answers go? Survey answers are in Survey results and on the order. Answers from input blocks such as Custom Checkbox are saved on the order as one metafield per block type, when the block saves to Order metafields. Both need the app's optional permission to edit orders. See App blocks.
What happens to my settings if I cancel? They are kept. The app stops running on your checkout until you choose a plan again, and then everything comes back.
What happens if I uninstall? Blocks, rules and offers stop at once. Your data is deleted 48 hours later, when Shopify asks us to. If you reinstall before then, your settings are still in the app.
Is shopper data collected?
- Survey answers, with the order they belong to. Buyers' email addresses are kept only if you turn on Keep buyers' email addresses with survey answers in Settings.
- Upsell events from the web pixel, only from buyers who allow analytics in your cookie banner.
How do I reach support? On Home, in the Help card, choose Chat with us. Or email support@trestack.app.
TreStack Checkout plans and billing
Starter, Growth and Pro, what needs Shopify Plus, the 14-day trial, development stores, changing, cancelling and uninstalling.
Troubleshooting
When a block, upsell, gift, survey or the post-purchase page does not show, answers are missing from orders, or Home shows a message.