# ## alert_displayed The `alert_displayed` event records instances when a user encounters an alert message, whether it's an inline validation message on an input field or a warning banner. This event is only available on checkout. [View alert_displayed](/docs/api/web-pixels-api//standard-events/alert-displayed) ## cart_viewed The `cart_viewed` event logs an instance where a customer visited the cart page. [View cart_viewed](/docs/api/web-pixels-api//standard-events/cart-viewed) ## checkout_address_info_submitted The `checkout_address_info_submitted` event logs an instance of a customer submitting their mailing address. This event is only available in checkouts where Checkout Extensibility for customizations is enabled [View checkout_address_info_submitted](/docs/api/web-pixels-api//standard-events/checkout-address-info-submitted) ## checkout_completed The `checkout_completed` event logs when a visitor completes a purchase. It's triggered once for each checkout, typically on the **Thank you** page. However, for upsells and post purchases, the `checkout_completed` event is triggered on the first upsell offer page instead. The event isn't triggered again on the **Thank you** page. If the page where the event is supposed to be triggered fails to load, then the `checkout_completed` event isn't triggered at all. [View checkout_completed](/docs/api/web-pixels-api//standard-events/checkout-completed) ## checkout_contact_info_submitted The `checkout_contact_info_submitted` event logs an instance where a customer submits a checkout form. This event is only available in checkouts where Checkout Extensibility for customizations is enabled [View checkout_contact_info_submitted](/docs/api/web-pixels-api//standard-events/checkout-contact-info-submitted) ## checkout_shipping_info_submitted The `checkout_shipping_info_submitted` event logs an instance where the customer chooses a shipping rate. This event is only available in checkouts where Checkout Extensibility for customizations is enabled [View checkout_shipping_info_submitted](/docs/api/web-pixels-api//standard-events/checkout-shipping-info-submitted) ## checkout_started The `checkout_started` event logs an instance of a customer starting the checkout process. This event is available on the checkout page. For Checkout Extensibility, this event is triggered every time a customer enters checkout. For non-checkout extensible shops, this event is only triggered the first time a customer enters checkout. [View checkout_started](/docs/api/web-pixels-api//standard-events/checkout-started) ## collection_viewed The `collection_viewed` event logs an instance where a customer visited a product collection index page. This event is available on the online store page. [View collection_viewed](/docs/api/web-pixels-api//standard-events/collection-viewed) ## page_viewed The `page_viewed` event logs an instance where a customer visited a page. This event is available on the online store, checkout, and **Order status** pages. [View page_viewed](/docs/api/web-pixels-api//standard-events/page-viewed) ## payment_info_submitted The `payment_info_submitted` event logs an instance of a customer submitting their payment information. This event is available on the checkout page. [View payment_info_submitted](/docs/api/web-pixels-api//standard-events/payment-info-submitted) ## product_added_to_cart The `product_added_to_cart` event logs an instance where a customer adds a product to their cart. This event is available on the online store page. [View product_added_to_cart](/docs/api/web-pixels-api//standard-events/product-added-to-cart) ## product_removed_from_cart The `product_removed_from_cart` event logs an instance where a customer removes a product from their cart. This event is available on the online store page. [View product_removed_from_cart](/docs/api/web-pixels-api//standard-events/product-removed-from-cart) ## product_viewed The `product_viewed` event logs an instance where a customer visited a product details page. This event is available on the product page. [View product_viewed](/docs/api/web-pixels-api//standard-events/product-viewed) ## search_submitted The `search_submitted` event logs an instance where a customer performed a search on the storefront. The products returned from the search query are in this event object (the first product variant for each product is listed in the array). This event is available on the online store page. [View search_submitted](/docs/api/web-pixels-api//standard-events/search-submitted) ## ui_extension_errored The `ui_extension_errored` event logs occurrences when an extension fails to render due to an uncaught exception in the extension code. This event is only available on checkout. [View ui_extension_errored](/docs/api/web-pixels-api//standard-events/ui-extension-errored)