Vitals Help Center

Sticky Add to Cart bar troubleshooting

Last updated on October 31, 2026

Use this page when the Sticky Add to Cart bar doesn't show or doesn't behave as you expect. The settings below are in Vitals, on the Sticky Add to Cart → Settings page. For setup, see Set Up The Sticky Add To Cart App. After each change, save and check your store in a private (incognito) window.

The bar doesn't show at all

  • The Vitals app embed must be on in your live theme, including after you publish a new theme. See Enabling the Vitals app via App Embed.
  • The status button at the top of the Sticky Add to Cart page should read Active. If it reads Activate app, click it.
  • The bar shows on product pages. On the homepage it needs Sticky on Homepage → Show on homepage and a featured product section.
  • Scroll down the page. By default the bar appears once the shopper starts scrolling, and with When to show set to When user scrolls past the Add to Cart button it waits until your theme's button leaves the screen. Choose Always on display to show it straight away. The preview in Vitals doesn't reflect this setting.
  • If it stopped showing after a theme change or update, contact our support team so they can check your theme.

The bar shows on some products but not others

  • Open Advanced display rules at the bottom of the Settings page. An Active filters badge means a rule is set.
  • A product gets no bar if it's left out of Display only on specific products, is listed in Exclude products, or falls outside a Price between, Discount between or Inventory between range.
  • Add the product to the rule, or click Reset filters to show the bar on every product. See Displaying apps only on specific products using Display Rules.
  • Sold-out products still show the bar, with your theme's sold-out text on a button that can't be clicked.

The bar doesn't show in a quick-add popup

A quick-add or quick-view popup on a collection page is not a product page, so the bar doesn't appear inside it. This is expected. The bar shows once the shopper opens the full product page.

The bar shows only on mobile, or only on desktop

  • Turn on Sticky on Mobile → Show on mobile devices and/or Sticky on Desktop → Show on desktop devices.
  • Each device has its own When to show, so the bar can appear later on one than the other.
  • Phone-sized screens use the Sticky on Mobile settings; tablets and computers use Sticky on Desktop. Test the mobile bar on a real phone.
  • If the bar covers a chat button on phones, change Mobile location to Top or Bottom.

The price shows twice

  • A crossed-out price next to the price is the compare-at price. To hide it, turn off Show compare-at price in Sticky on Desktop and/or Sticky on Mobile.
  • The price is also on the button: the bar copies your theme's Add to Cart button text, and some themes include the price. In General settings, turn on Overwrite Add to Cart button text and type your label in Add to Cart button text.
  • On phones you can also hide the bar's price with Sticky on Mobile → Show price (with Style set to Complete). On desktop the bar always shows the price.

The price or variant doesn't match the shopper's choice

Contact our support team so they can check your theme. Send the product link, your theme's name and a short screen recording: pick a variant on the page, then scroll to the bar.

The quantity selector is missing

  • Turn on Show quantity selector. It's off by default and set separately in Sticky on Mobile and Sticky on Desktop. On mobile it needs Style set to Complete.
  • It only appears if your product page has its own quantity selector. If your theme hides it, or a bundle or product-options app replaces it, show your theme's quantity selector or contact our support team.

The page jumps when a variant is chosen

  • If it jumps when a shopper picks a variant in the bar, turn on General settings → Stop page scroll.
  • If it jumps when they use your theme's own variant picker, the scroll comes from your theme. Contact our support team so they can check it.

Still not working?

Contact our support team through the live chat in the Vitals app or at [email protected], with the product link and the device you tested on.