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How to update item quantity fields in the cart in Shopify

Sam Updated: March 18, 2024

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Many Shopify users face challenges when trying to update item quantity fields in their cart, unsure of how to proceed. If you’re looking for a clear, step-by-step guide, you’re in the right place. Whether you’re using a sectioned or non-sectioned theme, this post will help you easily update item quantities in your Shopify cart, enhancing your store’s functionality and user experience. Let’s get started.

Table of content

What item quantity fields in the cart is
How to update item quantity fields in the cart in sectioned theme
How to update item quantity fields in the cart in non-sectioned theme

What item quantity fields in the cart is

The function of quantity fields seems to be simple: to show the number of times that you choose a product. For instance, you buy two similar books, so “two” is the quantity.

If you are using Shopify platform, you can implement the functions of updating quantities depending on which theme you are using, whether sectioned theme or non-sectioned theme. Let’s move to the second and three part to understand the instruction.

What item quantity fields in the cart is

How to update item quantity fields in the cart in sectioned theme

Step 1:

You access Shopify admin, click Online Store and go to Themes.

Step 2:

Find the themes that you want to edit, then press Actions then Edit Code.

How to update item quantity fields in shopify

Step 3:

Look at Sections, you click on cart-template.liquid. In case that you are not using the theme that does not have the address, you can access Template directory and click cart.liquid.

How to update item quantity fields in shopify

Step 4:

Find the phrase written as update[item.id] in input tag.

Step 5:

Change the name into the value of name= “updates[]”.

How to update item quantity fields in shopify

Step 6:

Reiterate these aforementioned steps whenever you see an name value of updates[] in input tag.

How to update item quantity fields in shopify

Step 7:

Click Save and you update item quantity fields successfully…

How to update item quantity fields in the cart in non-sectioned theme

You do the same steps as the method used for updating the number of items in a sectioned theme. Repeat the steps, you succeed in upgrading your quantity fields. Steps remain the same in both cases: desktop and iPhone/Android.

Attention: the tutorial is at advanced level and requires knowledge about web design languages namely HTML, CSS, JavaScript and Liquid, hence, if you find it complex to do these steps, let hire an expert.

Conclusion

Updating item quantity fields in your Shopify cart is essential for maintaining a seamless shopping experience. By carefully following the outlined steps, you can ensure your store operates efficiently and meets your customers’ needs without unnecessary complications.

Catalog

How to modify the shipping calculator HTML How to add the gift-wrapping snippet in your cart template How to modify your theme.liquid file How to insert some JavaScript to your theme Delete the author's name in your theme Insert the search box on your Jekyll site using lunr.js Liquid Variables: assign, capture, increment, increment Liquid paginate: Split into multiple pages Update the product form to support dynamic checkout buttons Select which page to show when customers log in to your online store Modify the code for your payment icons Insert the security badge code to your theme Insert Disqus to your blog Insert breadcrumb navigation to your store Generate your snippet generate the "How did you hear about us" form field Generate and include an age-check snippet Generate a back-to-the-top snippet Edit correct quantities on the cart page silently Apply a class to your templates Update item quantity fields in the cart Update the collection-template.liquid file Modify the theme code to add the shipping calculator Insert the notification form code to your theme Insert custom fields to your theme's customer registration form Add Custom Fields to Contact Form in Shopify Insert a form field to your theme code Insert a Continue shopping link to your cart page Insert a checkbox to your cart page in sectioned themes How To Create A Contact Page On Shopify: Our Step-by-Step Guide

Sam Nguyen

Sam Nguyen is the CEO and founder of Avada Commerce, an e-commerce solution provider headquartered in Singapore. He is an expert on the Shopify e-commerce platform for online stores and retail point-of-sale systems. Sam loves talking about e-commerce and he aims to help over a million online businesses grow and thrive.