Shopify Guides

How to Add Complementary Products in Shopify: A Roadmap to Boosting Your Revenue

September 25, 2025
How to Add Complementary Products in Shopify: A Roadmap to Boosting Your Revenue

Table of Contents

  1. Introduction
  2. Understanding Complementary Products
  3. How to Add Complementary Products in Shopify
  4. Case Study: Implementing Complementary Products
  5. Best Practices for Adding Complementary Products
  6. Conclusion

Introduction

According to recent studies, offering complementary products can enhance your average order value (AOV) by up to 30%. This compelling statistic underscores a vital opportunity for Shopify merchants eager to maximize their revenue potential. In a competitive e-commerce landscape, diversifying product offerings and enriching customer experience play key roles in driving sales and fostering brand loyalty.

Have you ever browsed a store only to discover items that seamlessly pair with what you were already interested in? This strategy not only boosts sales but also enriches the shopping experience, making it easier for customers to find what they need. The question then arises: how can we effectively implement this in our own Shopify stores?

In this blog post, we will explore various effective strategies and best practices for adding complementary products to your Shopify store. We’ll delve into Shopify’s built-in features, manual selections, and even advanced methods such as using apps and leveraging email marketing. By the end of this article, you will have the tools to elevate your Shopify store with complementary products to enhance customer engagement and, ultimately, your business revenue.

We’re excited to guide you on this journey, sharing our insights and strategies to help you maximize your store’s potential. So, let’s dive right in!

Understanding Complementary Products

Complementary products refer to items that naturally enhance or supplement a customer's primary purchase. For instance, when a customer purchases a smartphone, complementary products might include screen protectors, cases, or chargers. Strategically displaying these items can significantly boost both sales and customer satisfaction.

Benefits of Adding Complementary Products

The benefits of incorporating complementary products into your Shopify store go beyond simply increasing sales—they enhance the overall customer experience:

  • Increased Average Order Value (AOV): By showcasing products that pair well, we encourage customers to purchase more items, which increases our AOV.
  • Improved Customer Experience: Suggesting complementary products enhances the shopping journey, making it easier for consumers to find everything they need in one place.
  • Higher Conversion Rates: Relevant product displays can lead to higher conversion rates, as customers are inclined to add additional items to their carts.
  • Boosted Customer Loyalty: When customers find useful products in addition to their purchases, they are likely to return, fostering brand loyalty.

With an understanding of the importance of complementary products, we are better equipped to implement strategies that will enhance their visibility in our Shopify stores.

How to Add Complementary Products in Shopify

Integrating complementary products can be approached through a combination of Shopify’s features and customizations. In the following sections, we’ll cover several methods to implement this strategy successfully.

1. Using Shopify’s Built-in Features

Product Recommendations API

Shopify provides a robust Product Recommendations API that helps merchants automatically showcase complementary products. Here’s how we can utilize it:

  • Install the API: Verify that your Shopify theme supports the Product Recommendations API. You can find this option within your theme settings.
  • Customize Your Theme:
    1. From the Shopify Admin dashboard, go to Online Store and select Themes.
    2. Click the Customize button next to your active theme.
    3. Navigate to the Product Page settings.
  • Add the Recommendations Block: Here, we can add a block for complementary products.
    • Choose to display 2-3 recommended products initially and enable pagination for additional items.
  • Use Descriptive Labels: Create clear communication on the relevance of the products displayed by using phrases like “Pairs well with” or “Frequently bought together.”

Implementing these features can significantly increase the visibility of complementary products on your store.

2. Manual Recommendations

Apart from automated suggestions, there’s also immense value in manually selecting complementary products. This approach works particularly well for niche markets. Here’s a step-by-step outline:

  • Identify Complementary Products: Analyze your product catalog to find items that naturally pair well together. For instance, if you're selling kitchen gadgets, consider showcasing utensils or cookbooks that enhance their use.
  • Edit Product Recommendations:
    1. In your Shopify Admin, go to the product settings.
    2. Scroll to the Product Recommendations section to add or remove products from your list.
  • Highlight the Selection: Use compelling visuals and precise copy to draw attention to these offerings on your product pages.

This method allows us greater control over the displayed products, aligning them with our marketing goals.

3. Using Apps for Enhanced Functionality

If you seek advanced functionalities, various Shopify apps specialize in product recommendations and upselling. Here’s how to leverage these tools effectively:

  • Explore Available Apps: Visit the Shopify App Store and search for apps focusing on product recommendations. Look for features like customizable algorithms and A/B testing capabilities.
  • Integrate with Tools: Some apps even integrate with platforms like Tevello, allowing us to manage product recommendations while also offering digital products or courses that can serve as complementary offerings.
  • Set Up and Customize: After selecting an app, follow the installation instructions and customize the settings according to our store’s requirements.

Utilizing apps allows for flexibility and advanced features, optimizing your offerings effectively.

4. Leveraging Email Marketing for Upselling

Post-purchase communication can be a powerful way to promote complementary products. Here’s how:

  • Collect Customer Emails: Ensure that you are collecting customer emails during the checkout process.
  • Create Targeted Campaigns: We can segment audiences based on their past purchases and design tailored email campaigns featuring complementary products.
  • Use Incentives: Offering discounts or limited-time offers on complementary products can further encourage purchases.

Combining email marketing with product recommendations creates additional revenue opportunities after the initial sale.

5. Enhancing the Cart Experience

The shopping cart is a critical area for upselling complementary products. Enhancements here can have significant effects:

  • Display Recommendations: Show complementary products directly within the shopping cart, using prompts like "You might also like" or "Frequently bought together."
  • Implementing Pop-ups: Consider using pop-ups that showcase complementary products just as the customer is about to check out, encouraging them to consider additional items.
  • Streamline Checkout: While upselling, ensure our checkout process remains smooth and user-friendly to minimize cart abandonment.

This method can effectively prompt customers to include more items before they finalize their purchases.

6. Customizing the User Interface

The design and layout of our store can significantly influence how customers view complementary products. To enhance user experience:

  • Positioning: Strategically position the complementary products section near the product description or images to attract customer attention.
  • Collapsible Sections: Making the complementary products area collapsible can prevent information overload while allowing interested customers to explore further.
  • Use Visual Cues: Implement eye-catching visuals or icons to draw customers to the complementary products section.

This kind of user interface customization creates an appealing experience that effectively promotes complementary products.

Case Study: Implementing Complementary Products

Let’s consider a hypothetical case study of a Shopify merchant selling handcrafted jewelry. By offering pieces that naturally complement each other, this merchant can significantly enhance customer experience and boost sales.

Step-by-Step Implementation:

  1. Identify Complementary Products: The merchant recognizes that certain necklaces pair well with earrings and bracelets.
  2. Set Up Product Recommendations: Using Shopify’s Product Recommendations API, they set up their product pages to feature these complementary items.
  3. Email Marketing Campaign: After a customer purchases a necklace, they send a follow-up email with a discount on the corresponding earrings.
  4. Checkout Enhancements: When a customer adds a necklace to their cart, the checkout page displays a pop-up suggesting matching earrings.
  5. User Interface Customization: The merchant enhances product pages with attractive images and calls to action, encouraging customers to explore complementary items.

Through this comprehensive strategy, the merchant can increase their AOV and enhance the overall shopping experience, leading to repeat business.

Best Practices for Adding Complementary Products

To ensure the effectiveness of our complementary product strategies, we recommend the following best practices:

  • Test and Optimize: Always monitor the performance of our product recommendations and make necessary adjustments based on customer behavior and feedback.
  • Use Analytics: Take advantage of Shopify’s analytics tools to track which complementary products are generating the most additional sales, and refine our offerings accordingly.
  • Be Mindful of Timing: Introduce complementary products at strategic points in the customer journey, like during browsing or checkout.
  • Create a Feedback Loop: Encourage customers to provide feedback on product recommendations, using this information to improve our service.

By following these best practices, we can create a robust strategy that enhances customer satisfaction and drives consistent sales growth.

Conclusion

Adding complementary products to your Shopify store isn’t just a tactic—it’s a fundamental strategy that can improve customer experience while driving profitability. By utilizing the built-in features, leveraging email marketing, and customizing user interfaces, we can create a seamless flow that encourages shoppers to discover products that pair perfectly with what they already love.

Throughout this blog, we’ve explored ways to elevate our Shopify stores through strategic complementary product implementations. To summarize, here are the key takeaways:

  • Understand the importance of complementary products for increasing AOV and fostering customer loyalty.
  • Utilize available Shopify features alongside manual recommendations to optimize product visibility.
  • Consider advanced methods, including apps and email marketing, for increasing customer engagement.

As we forge ahead, let's continually adapt and refine our strategies to ensure a rewarding shopping experience for our customers. By doing this together, we not only enhance satisfaction but also transform every order into a revenue opportunity.

Frequently Asked Questions (FAQ)

Q: What are complementary products?
A: Complementary products are items that enhance or supplement the primary product a customer is purchasing. Examples include accessories, add-ons, or related items that improve the use of the main product.

Q: How do complementary products benefit my Shopify store?
A: They can increase average order value, improve customer experience, drive higher conversion rates, and foster customer loyalty.

Q: Can I manually add complementary products in Shopify?
A: Yes, Shopify allows merchants to manually select complementary products through their product settings, enabling tailored recommendations.

Q: Is there a way to automate suggestions for complementary products?
A: Yes, Shopify’s Product Recommendations API enables the automatic display of complementary products based on customer behavior and product relationships.

Q: How can I enhance the post-purchase experience for customers?
A: Utilize email marketing to suggest complementary products after a purchase, offering discounts or helpful tips to encourage further sales.

By implementing these strategies, we can create a rewarding shopping environment that not only fulfills customer needs but also drives sustainable revenue growth for our Shopify stores. Let's work together to take our e-commerce efforts to new heights!


Participation is optional and ShipAid is not insurance. It does not provide indemnification for loss, damage, or liability. Instead, it allows brands to offer a free replacement if an item is not delivered or arrives in unsatisfactory condition. ShipAid does not sell or ship products, but provides tools for brands to manage replacements. All resolution decisions are made by the brand and may require proof of damage or non-delivery or other information

Similar Posts

Read, Protect & Prosper

Start for free ($0/mo), No strings attached

Protect Your Shipments & Boost Your Profits, It's That Simple.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
White checkmark icon
Free Expert Installation
White checkmark icon
Cancel anytime