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Open the app Home page, choose Open theme editor, turn CartPlus cart drawer on under App embeds, and Save. Home marks that step Done when the published theme has the embed on. Saving Settings or Upsells updates the storefront automatically.

Confirm the embed is on for the published theme (embeds are per theme). Publish from the app. Hard-refresh the storefront. If another cart drawer app is installed, one of them may win the click intercept.

When the CartPlus embed is on, CartPlus intercepts the header cart icon and add-to-cart, hides the theme drawer/popup (Dawn, Horizon, and common custom themes), and opens CartPlus instead. You do not need a “disable cart drawer” theme setting — leave Theme settings → Cart on Drawer or Cart page. If another cart app is installed, one of them may win.

Turn the App embed on again for the new theme. Settings stay in the app; the embed is not copied automatically.

Open Upsells, pick up to four products, then publish. Starter and above. Related products and automatic recommendations are toggles in Settings, gated by plan.

Paid plans use Shopify Billing with no trial — billing starts when you approve the charge. Free is for development stores only. Live stores require a paid plan (Starter, Growth, or Pro). See Pricing for amounts that match the Billing API.

Open Plan in the app and choose Cancel subscription. Shopify billing stops and paid features pause until you pick a plan again. Free is for development stores only.

Remove the app in Shopify admin. Shopify cancels the subscription. We delete shop data as described in the Privacy Policy.