Below are common ways other e‑commerce platforms, storefronts, and commerce-related systems are integrated with Salesforce Commerce Cloud (SFCC), with representative platforms/providers and how they’re typically connected. I’ve grouped them so you can quickly see options (direct AppExchange connectors, headless frontends/CMS, middleware/iPaaS, ERP/OMS/payments, and common platform-to‑SFCC connectors).

Note: many integrations to SFCC are implemented via AppExchange apps or middleware (MuleSoft/Celigo/API2Cart/etc.), so a given platform often integrates indirectly through a connector rather than a native, out‑of‑the‑box SFCC plugin.

1. AppExchange / native partner integrations (examples)

• Magnolia (headless CMS / DXP) — AppExchange listed headless integration for SFCC. (appexchange.Salesforce.com)
• Sitecore Content Hub (headless CMS) — AppExchange/headless integration with SFCC. (appexchange.Salesforce.com)
• Poq (mobile & headless storefronts) — mobile/headless frontends that integrate with SFCC. (appexchange.Salesforce.com)

2. Headless commerce platforms / storefronts that are used with SFCC

• commercetools, Contentful, Acquia, and other headless CMS/commerce DXP solutions — frequently paired with SFCC for composable or headless experiences (via APIs). (Examples appear in AppExchange listings and partner solutions.) (appexchange.Salesforce.com)

3. Middleware, unified APIs and iPaaS connectors (used to connect SFCC to other e‑commerce platforms or systems)

• API2Cart — unified API to connect apps with SFCC and many other shopping carts (Magento/Shopify/BigCommerce/WooCommerce etc.). Useful when you need a single integration layer across many platforms. (api2cart.com)
• MuleSoft (and other iPaaS platforms like Celigo, Boomi, Tray.io, Itembase) — used to integrate SFCC with ERP, CRM, marketplaces, or other storefronts. AppExchange and partner pages show many MuleSoft/partner solutions. (itembase.com)

4. Common e‑commerce platforms that organizations integrate with SFCC (typically via connectors or middleware)

• Shopify — often integrated with Salesforce CRM or other Salesforce products; when paired with SFCC this is usually through middleware/connector tools. (ecommerce.folio3.com)
• Magento / Adobe Commerce — many connector solutions (Webkul, custom integrations) synchronize products, orders, customers with Salesforce systems. (ecommerce.folio3.com)
• BigCommerce — integrations to Salesforce products are commonly implemented via third‑party connectors or middleware. (ecommerce.folio3.com)
• WooCommerce / PrestaShop / OpenCart / Shopware — typical integrations use plugins, middleware or custom APIs (Zapier, API2Cart, vendor connectors). (ecommerce.folio3.com)

5. ERP / OMS / Accounting systems commonly integrated to SFCC (via AppExchange partners or middleware)

• NetSuite, SAP, Sage Intacct, Microsoft Dynamics — enterprise integrations to keep orders, inventory and finances synchronized with SFCC. AppExchange and partner sites list many such integrations. (etg.digital)

6. Payments, shipping, and storefront services (examples of vendors with SFCC integrations)

• Payment & gateway providers (Adyen, Stripe, Braintree, etc.) — often integrated via cartridges or API middleware.
• Shipping & returns — Zenkraft (shipping/tracking/returns) has SFCC/AppExchange listings. (appexchange.Salesforce.com)

7. Where to find official/maintained integrations

• Salesforce AppExchange — curated Commerce Cloud apps and ISV partners (search “Commerce Cloud” on AppExchange). This is the primary place to find vetted partner connectors and native apps for SFCC. (appexchange.Salesforce.com)

Quick guidance for choosing an approach

• If you need to connect multiple platforms or support many store types (Shopify, Magento, WooCommerce, SFCC) use a unified API / iPaaS (API2Cart, MuleSoft, Celigo) to reduce point‑to‑point work. (api2cart.com)
• For headless or mobile experiences, look for headless frontends and CMS partners listed on AppExchange (Poq, Magnolia, Sitecore, commercetools partners). (appexchange.Salesforce.com)
• For ERP/finance sync, prefer proven AppExchange connectors or enterprise iPaaS integrations to avoid data mismatches. (etg.digital)

If you want, I can:

• look up specific connectors for a particular platform (e.g., “Shopify ↔ SFCC connector”), or
• list SFCC AppExchange apps in a given category (payments, CMS, OMS, shipping) with direct AppExchange citations and the latest release dates.