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You can add online selling to an existing website either by using its built-in store tools or by connecting it to a separate commerce service. First confirm your builder and plan support the kind of sales you need; then add products, configure payments and fulfillment, review the customer journey, and publish. The exact steps differ by platform, so use its current help instructions for editor labels.
Choose how the store will work
A native store uses the website builder’s commerce features for the catalog and shopping journey. A connected store keeps commerce in a separate service and links or embeds a way to shop on your existing site. The right choice depends on where you want to manage products and where customers will complete checkout.
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- Use a native store if you want product pages, cart, and checkout managed within your builder’s commerce tools.
- Connect a separate store if you already manage products in a commerce service or want to keep the existing site while adding a purchase route.
Before choosing, confirm that the required features and payment providers are available for your account and location. Wix, for example, says payment-provider availability varies by location, and selling requires a Premium or Studio plan that allows payments. See Wix’s store setup guidance.
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Decide what you will sell and how it reaches customers
Product type affects both setup and delivery. Physical goods need a plan for shipping, local delivery, or pickup; downloads need a digital delivery method; services need clear descriptions of what the customer receives and how fulfillment works. Platform support varies. Squarespace’s current instructions cover physical goods, services, downloads, and gift cards, and require a shipping or local-pickup option for physical products. Check the instructions for your site version at Squarespace Help Center.
Add a store using your builder’s native tools
Wix
- Open the site in the editor.
- Select Add Elements, click Store, then choose + Add to Site. Wix says this adds a Shop page and supporting product, cart, checkout, thank-you, and member pages. Follow the current Wix Stores installation instructions if the editor labels differ.
- Build the catalog, including product details, images, variants, and categories where needed.
- Set business details, shipping, delivery or pickup, applicable tax settings, and payment providers.
- Review checkout, store design, and member-area settings, then publish the site. Wix’s 10-step store guide organizes these tasks and says to connect at least one payment method before selling.
Squarespace
Add a store page, then add products using the instructions for your Squarespace version. Configure the product’s delivery or fulfillment details as part of setup. The official product instructions distinguish among product types and versions, so avoid assuming every control or workflow is identical across sites.
Connect an existing site to a separate store
Shopify Buy Button
Shopify documents a Buy Button sales channel that generates embed code for selling products on an existing online presence. Product management and commerce remain in Shopify, while the button gives visitors on the other site a purchase route. See Shopify’s Online Store documentation for the current options.
Shopify products on Squarespace
Squarespace documents two ways to use Shopify with a Squarespace site: import Shopify products into a Squarespace store page using a CSV, or link to Shopify products through buttons, images, navigation, or text. These are different arrangements: an import places product information in Squarespace’s store, while links send visitors to Shopify product pages. Squarespace says Shopify checkout buttons embedded directly on a Squarespace site require custom code and are not a built-in option. Follow the guidance for the version of your site in Squarespace’s Shopify instructions, last updated July 31, 2026.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsConfigure payments, shipping, and taxes before launch
- Payments: Confirm that a payment provider supports your country or region and account. Connect at least one method, then verify the checkout flow in the builder’s supported preview or test process.
- Shipping and fulfillment: Define where you sell and what customers can choose, such as shipping, local delivery, or pickup. Make delivery costs and timing understandable before checkout.
- Taxes: Set up tax handling for the places you serve, but do not treat software settings or automation as a substitute for determining your own collection and filing obligations. Requirements depend on location and business circumstances; consult the relevant tax authority or a qualified adviser.
- Policies and contact details: Add accurate shipping, returns, privacy, and contact information appropriate to your business and jurisdiction.
Keep or connect your existing domain
You can keep a domain registered elsewhere and connect it to Shopify by updating DNS records with the domain provider. Shopify says those changes usually take effect within two hours but can take up to two days. The registrar continues to manage domain billing and settings, so retain access to that account. See Shopify’s third-party domain instructions.
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If you use another builder or a linked external store, check its domain and redirect instructions before changing DNS. Decide whether customers should shop on the existing site, follow a link to the separate store, or use a connected domain; these choices affect where the shopping journey and checkout occur.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Review the store before publishing
Work through the customer journey, not just the editor page. Check that products are accurate and available, options and prices are clear, fulfillment choices match the regions served, and checkout presents the expected payment and delivery details. Review the site on a phone as well as a desktop, and verify contact and policy pages. If you change a domain, allow for DNS propagation before assuming the connection has failed.
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