Add-on price not added to the product price

A customer selects a paid option value, but the price shown on the product page doesn't change, or the amount looks wrong. Here's how to fix the common causes.

First, a reassurance: the displayed price and the charged price are separate mechanisms. Even when the product page display is wrong, the correct add-on amount is still charged at checkout. But a mismatched display confuses customers, so it's worth fixing.

Displayed price doesn't update

The widget updates your theme's price element when a paid value is selected. If your theme uses an unusual structure, the widget can't find that element:

1. In the app, go to Settings.
2. Set the Price selector to the CSS selector of your theme's product price element. The setting's own hint says to use it only if the add-on price is not adding to the main product price.
3. If your theme shows a compare-at (strikethrough) price, set the Compare-at price selector too.
4. Save and reload the product page.

You can find the selector with your browser's developer tools, or message us from the chat in the app and we'll find it for you.

Price is converted oddly in another currency

Add-on prices are set in your store's base currency and converted automatically for Shopify Markets currencies. The conversion relies on a hidden helper product called "Optionize Exchange Rate Helper" that the app maintains in your store. If it was deleted, conversions fall back to a 1:1 rate. See Hidden Optionize products in my Shopify admin, then contact us via the in-app chat so we can restore it.

Add-ons missing at checkout entirely

If selecting a paid value doesn't add anything at checkout, the widget may not be hooked into your theme's add to cart button. In Settings, set the Add to cart button selector to your theme's add to cart button.

Still stuck? Message us from the chat in the app and we'll help.