remove_from_cart

The remove_from_cart event tracks when a user removes a product from their cart or reduces its quantity. This is your cart abandonment signal at the item level — before the session even ends.

Remove-from-cart data lets you identify which products get added and then second-guessed, what price points cause hesitation, and which products have high add-to-cart rates but low purchase conversion. That’s actionable product and pricing intelligence.

When to fire

Fire remove_from_cart when:

• A user clicks a “Remove” button in the cart
• A user reduces quantity in the cart (fire for the delta removed)
• A user clears the entire cart (fire for all items removed, or one event with all removed items)

As with add_to_cart, fire after confirmation — after the cart API call succeeds, not on the button click.

Complete dataLayer push

// User removes one item from cart
dataLayer.push({ ecommerce: null });

dataLayer.push({
  event: 'remove_from_cart',
  ecommerce: {
    currency: 'USD',
    value: 89.99,    // value of what's being removed
    items: [
      {
        item_id: 'SKU-001-BLK-L',
        item_name: 'Classic Leather Jacket',
        item_brand: 'Heritage Co.',
        item_category: 'Apparel',
        item_category2: 'Outerwear',
        item_category3: 'Jackets',
        item_variant: 'Black / Large',
        price: 89.99,
        quantity: 1,    // quantity being removed
        affiliation: 'Online Store'
      }
    ]
  }
});

Event schema

Event Schema remove_from_cart

Parameter	Type	Required	Description
event	string	Required	Must be "remove_from_cart"
ecommerce.currency	string	Required	ISO 4217 currency code.
ecommerce.value	number	Required	Total value being removed — price × quantity of each item removed.
ecommerce.items[]	Array<Item>	Required	Array of items being removed.
items[].item_id	string	Required	SKU or variant-level product identifier.
items[].item_name	string	Required	Product name.
items[].item_brand	string	Optional	Brand or manufacturer.
items[].item_category	string	Optional	Primary product category.
items[].item_variant	string	Optional	Variant being removed.
items[].price	number	Optional	Unit price at time of removal.
items[].quantity	number	Optional	Number of units being removed — the delta, not the remaining cart quantity.

Partial removal: reducing quantity

When a user reduces quantity from 3 to 1, they’re removing 2 units. Fire remove_from_cart with quantity: 2 and value: price × 2.

// User reduces from 3 to 1 — removing 2 units
const unitPrice = 24.99;
const quantityRemoved = 2;

dataLayer.push({ ecommerce: null });
dataLayer.push({
  event: 'remove_from_cart',
  ecommerce: {
    currency: 'USD',
    value: unitPrice * quantityRemoved,  // 49.98
    items: [{
      item_id: 'SKU-047-WHT-M',
      item_name: 'Cotton Crew T-Shirt',
      item_brand: 'Heritage Co.',
      item_category: 'Apparel',
      item_variant: 'White / Medium',
      price: unitPrice,
      quantity: quantityRemoved  // 2 — not the new total of 1
    }]
  }
});

Multiple items removed simultaneously

If a user clears their entire cart or removes multiple items in one action, include all removed items in a single event.

// User clears entire cart with 3 items
const removedItems = [
  { item_id: 'SKU-001-BLK', item_name: 'Classic Leather Jacket', price: 89.99, quantity: 1 },
  { item_id: 'SKU-047-WHT', item_name: 'Cotton Crew T-Shirt', price: 24.99, quantity: 2 },
  { item_id: 'SKU-112-TAN', item_name: 'Woven Leather Belt', price: 34.50, quantity: 1 }
];

const totalValue = removedItems.reduce((sum, item) => sum + (item.price * item.quantity), 0);

dataLayer.push({ ecommerce: null });
dataLayer.push({
  event: 'remove_from_cart',
  ecommerce: {
    currency: 'USD',
    value: parseFloat(totalValue.toFixed(2)),
    items: removedItems
  }
});

GTM configuration

1. Create a Custom Event trigger. Event name: remove_from_cart. Name it CE - remove_from_cart.

2. Create Data Layer Variables for ecommerce.currency, ecommerce.value, and ecommerce.items.

3. Create the GA4 Event tag. Event name: remove_from_cart. Enable Send Ecommerce data. Add currency and value as explicit event parameters.

4. Test in Preview mode. Add items to cart, then remove one. Check that quantity is the removed amount, not the total cart quantity.

Common mistakes

Reporting the remaining cart quantity instead of the removed quantity. After removing 2 of 3 units, the cart has 1 unit remaining. The event should have quantity: 2 (what was removed) — not quantity: 1 (what remains).

Not firing when quantity is reduced to zero. Reducing quantity to 0 is functionally the same as clicking Remove. Make sure both paths trigger the event.

Using a stale price. Capture the price at the time of removal, not at the time the item was originally added. Prices can change while items sit in a cart.

add_to_cart The counterpart event — tracking when items are added to the cart.

view_cart Cart page view with the full current cart contents.

Ecommerce Overview The full GA4 ecommerce funnel and items array structure.