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    • What is SS Upsell & Cross Sell?
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All help centersHomeGetting StartedTheme Compatibility

Getting Started

Theme Compatibility

Learn which Shopify themes are compatible with SS Upsell & Cross Sell, how the app integrates with your store, and what to do if you're using a custom theme.

3 min read·Updated Jul 9, 2026

Overview

SS Upsell & Cross Sell is built to work with Shopify's Online Store 2.0 architecture and is compatible with most modern Shopify themes.

The app uses Shopify App Blocks and App Embeds, making installation simple without requiring any code changes. If your store uses a custom or heavily modified theme, the app can still work with minor configuration.


Supported Themes

SS Upsell & Cross Sell has been tested with many popular Shopify themes, including:

Theme

Supported

Dawn

✅ Yes

Sense

✅ Yes

Refresh

✅ Yes

Craft

✅ Yes

Crave

✅ Yes

Studio

✅ Yes

Prestige

✅ Yes

Impulse

✅ Yes

Impact

✅ Yes

Shrine

✅ Yes

Ella

✅ Yes

Other Online Store 2.0 Themes

✅ Yes

📷 Screenshot: Supported Shopify Themes


Online Store 2.0 Support

SS Upsell & Cross Sell is fully optimized for Shopify Online Store 2.0 themes.

With Online Store 2.0, you can:

• Add App Blocks directly from the Theme Editor.

• Drag and drop upsell widgets anywhere in supported sections.

• Enable or disable App Embeds without editing theme code.

• Customize widget placement visually.

📷 Screenshot: Theme Editor with App Blocks


Vintage (Legacy) Themes

The app works best with Online Store 2.0 themes.

If you're using a legacy (Vintage) Shopify theme:

• Some App Blocks may not be available.

• Certain features may require manual theme integration.

• Our support team can help configure the app for compatible legacy themes.


Custom Themes

If your store uses a custom-built theme, SS Upsell & Cross Sell can still work in most cases.

Some custom themes use unique layouts or cart drawer implementations that may require additional configuration.

Our support team can help configure:

• Custom Cart Drawer selectors

• Widget placement

• Theme-specific compatibility

• App Block positioning

📷 Screenshot: Custom Theme Integration


Cart Drawer Compatibility

The Cart Drawer Upsell feature is compatible with most themes that use Shopify's standard AJAX Cart.

The widget automatically updates whenever products are added, removed, or updated in the cart.

If your theme uses a custom cart drawer, additional configuration may be required.


How to Check if Your Theme is Supported

You can verify compatibility in a few simple steps:

  1. Open your Shopify Admin.

  2. Navigate to Online Store → Themes.

  3. Click Customize on your active theme.

  4. Add an SS Upsell App Block.

  5. If the block appears in the editor, your theme supports Shopify App Blocks.

📷 Screenshot: Theme Customizer


If the App Block Doesn't Appear

If you cannot find the App Block:

• Confirm that your app is installed correctly.

• Make sure you're using an Online Store 2.0 theme.

• Refresh the Theme Editor.

• Ensure the App Embed is enabled.

• If you're using a custom theme, contact our support team for assistance.


Best Practices

• Use an Online Store 2.0 theme for the best experience.

• Keep your theme updated to the latest version.

• Enable the App Embed after installation.

• Test your upsell widgets on both desktop and mobile devices.

• Contact support if your theme has a custom cart drawer.


Frequently Asked Questions

Does SS Upsell & Cross Sell work with all Shopify themes?

The app works with most Shopify themes, especially Online Store 2.0 themes.


Does the app support custom themes?

Yes. Most custom themes are supported, although some may require additional configuration.


Do I need to edit my theme code?

No.

Most merchants can install and use the app without editing any theme code.


Why isn't the App Block showing in my Theme Editor?

This usually happens if:

• You're using a legacy theme.

• The app isn't installed correctly.

• The Theme Editor hasn't refreshed.

• The App Embed hasn't been enabled.


My cart drawer looks different. Will the app still work?

Yes, in most cases.

If your theme uses a custom cart drawer implementation, our support team can help configure the app for your theme.

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PreviousSupported Shopify PlansNext How Sparrow Upsell & Cross-sell Works

On this page

  • Overview
  • Supported Themes
  • Online Store 2.0 Support
  • Vintage (Legacy) Themes
  • Custom Themes
  • Cart Drawer Compatibility
  • How to Check if Your Theme is Supported
  • If the App Block Doesn't Appear
  • Best Practices
  • Frequently Asked Questions
  • Does SS Upsell & Cross Sell work with all Shopify themes?
  • Does the app support custom themes?
  • Do I need to edit my theme code?
  • Why isn't the App Block showing in my Theme Editor?
  • My cart drawer looks different. Will the app still work?

On this site

Rules Category
  • Offer Products Category
    • Offer Products Overview
  • Trigger Rules Category
    • Trigger Offers Overview
    • All Products Trigger
    • Specific Products Trigger
    • Products in Specific Collections
SS Upsell & Cross sell Article
  • Getting Started
    • What is SS Upsell & Cross Sell?
    • Key Features Overview
    • Supported Shopify Plans
    • Theme Compatibility
    • How Sparrow Upsell & Cross-sell Works
    • Frequently Asked Questions
  • Installation & Setup

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