Check out what’s new from Firebase@ Google I/O 2021, and join our alpha program for early access to the new Remote Config personalization feature. Learn more

Measure Ecommerce

Ecommerce allows measurement of user interactions with products across your users' shopping experiences, including interactions such as product (item) list views, product list clicks, viewing product details, adding a product to a shopping cart, initiating the checkout process, purchases, and refunds.

Before you begin

Make sure that you’ve set up your project and can access Analytics as described in Get Started with Analytics. Ecommerce measurement requires you to link your Firebase project to an Analytics account and to have the Android SDK v17.3.0 or iOS v6.20.0 and up in your app.

Implementation

A typical ecommerce implementation measures any of the following actions:

At the heart of these actions are products. Products can be instrumented as an array of items that can be added to prescribed ecommerce events. The following example demonstrates how to create a collection of items that are referenced throughout this guide.

Swift 

// A pair of jeggings
var jeggings: [String: Any] = [
  AnalyticsParameterItemID: "SKU_123",
  AnalyticsParameterItemName: "jeggings",
  AnalyticsParameterItemCategory: "pants",
  AnalyticsParameterItemVariant: "black",
  AnalyticsParameterItemBrand: "Google",
  AnalyticsParameterPrice: 9.99,
]

// A pair of boots
var boots: [String: Any] = [
  AnalyticsParameterItemID: "SKU_456",
  AnalyticsParameterItemName: "boots",
  AnalyticsParameterItemCategory: "shoes",
  AnalyticsParameterItemVariant: "brown",
  AnalyticsParameterItemBrand: "Google",
  AnalyticsParameterPrice: 24.99,
]

// A pair of socks
var socks: [String: Any] = [
  AnalyticsParameterItemID: "SKU_789",
  AnalyticsParameterItemName: "ankle_socks",
  AnalyticsParameterItemCategory: "socks",
  AnalyticsParameterItemVariant: "red",
  AnalyticsParameterItemBrand: "Google",
  AnalyticsParameterPrice: 5.99,
]
ViewController.swift

Objective-C 

// A pair of jeggings
NSMutableDictionary *jeggings = [@{
  kFIRParameterItemID: @"SKU_123",
  kFIRParameterItemName: @"jeggings",
  kFIRParameterItemCategory: @"pants",
  kFIRParameterItemVariant: @"black",
  kFIRParameterItemBrand: @"Google",
  kFIRParameterPrice: @9.99,
} mutableCopy];

// A pair of boots
NSMutableDictionary *boots = [@{
  kFIRParameterItemID: @"SKU_456",
  kFIRParameterItemName: @"boots",
  kFIRParameterItemCategory: @"shoes",
  kFIRParameterItemVariant: @"brown",
  kFIRParameterItemBrand: @"Google",
  kFIRParameterPrice: @24.99,
} mutableCopy];

// A pair of socks
NSMutableDictionary *socks = [@{
  kFIRParameterItemID: @"SKU_789",
  kFIRParameterItemName: @"ankle_socks",
  kFIRParameterItemCategory: @"socks",
  kFIRParameterItemVariant: @"red",
  kFIRParameterItemBrand: @"Google",
  kFIRParameterPrice: @5.99,
} mutableCopy];
AnalyticsHelper.m

Kotlin+KTX 

val itemJeggings = Bundle().apply {
    putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123")
    putString(FirebaseAnalytics.Param.ITEM_NAME, "jeggings")
    putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "pants")
    putString(FirebaseAnalytics.Param.ITEM_VARIANT, "black")
    putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google")
    putDouble(FirebaseAnalytics.Param.PRICE, 9.99)
}

val itemBoots = Bundle().apply {
    putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_456")
    putString(FirebaseAnalytics.Param.ITEM_NAME, "boots")
    putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "shoes")
    putString(FirebaseAnalytics.Param.ITEM_VARIANT, "brown")
    putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google")
    putDouble(FirebaseAnalytics.Param.PRICE, 24.99)
}

val itemSocks = Bundle().apply {
    putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_789")
    putString(FirebaseAnalytics.Param.ITEM_NAME, "ankle_socks")
    putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "socks")
    putString(FirebaseAnalytics.Param.ITEM_VARIANT, "red")
    putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google")
    putDouble(FirebaseAnalytics.Param.PRICE, 5.99)
}
MainActivity.kt

Java 

Bundle itemJeggings = new Bundle();
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123");
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_NAME, "jeggings");
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "pants");
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "black");
itemJeggings.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
itemJeggings.putDouble(FirebaseAnalytics.Param.PRICE, 9.99);

Bundle itemBoots = new Bundle();
itemBoots.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_456");
itemBoots.putString(FirebaseAnalytics.Param.ITEM_NAME, "boots");
itemBoots.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "shoes");
itemBoots.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "brown");
itemBoots.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
itemBoots.putDouble(FirebaseAnalytics.Param.PRICE, 24.99);

Bundle itemSocks = new Bundle();
itemSocks.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_789");
itemSocks.putString(FirebaseAnalytics.Param.ITEM_NAME, "ankle_socks");
itemSocks.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "socks");
itemSocks.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "red");
itemSocks.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
itemSocks.putDouble(FirebaseAnalytics.Param.PRICE, 5.99);

Web v8 

// A pair of jeggings
const item_jeggings = {
  item_id: 'SKU_123',
  item_name: 'jeggings',
  item_category: 'pants',
  item_variant: 'black',
  item_brand: 'Google',
  price: 9.99
};

// A pair of boots
const item_boots = {
  item_id: 'SKU_456',
  item_name: 'boots',
  item_category: 'shoes',
  item_variant: 'brown',
  item_brand: 'Google',
  price: 24.99
};

// A pair of socks
const item_socks = {
  item_id: 'SKU_789',
  item_name: 'ankle_socks',
  item_category: 'socks',
  item_variant: 'red',
  item_brand: 'Google',
  price: 5.99
};

Web v9 

// A pair of jeggings
const item_jeggings = {
  item_id: 'SKU_123',
  item_name: 'jeggings',
  item_category: 'pants',
  item_variant: 'black',
  item_brand: 'Google',
  price: 9.99
};

// A pair of boots
const item_boots = {
  item_id: 'SKU_456',
  item_name: 'boots',
  item_category: 'shoes',
  item_variant: 'brown',
  item_brand: 'Google',
  price: 24.99
};

// A pair of socks
const item_socks = {
  item_id: 'SKU_789',
  item_name: 'ankle_socks',
  item_category: 'socks',
  item_variant: 'red',
  item_brand: 'Google',
  price: 5.99
};

Select a product from a list

When a user is presented with a list of results, log a view_item_list event including an items array parameter containing the displayed products.

Swift 

// Add item indexes
jeggings[AnalyticsParameterIndex] = 1
boots[AnalyticsParameterIndex] = 2
socks[AnalyticsParameterIndex] = 3

// Prepare ecommerce parameters
var itemList: [String: Any] = [
  AnalyticsParameterItemListID: "L001",
  AnalyticsParameterItemListName: "Related products",
]

// Add items array
itemList[AnalyticsParameterItems] = [jeggings, boots, socks]

// Log view item list event
Analytics.logEvent(AnalyticsEventViewItemList, parameters: itemList)
ViewController.swift

Objective-C 

// Add item indexes
jeggings[kFIRParameterIndex] = @1;
boots[kFIRParameterIndex] = @2;
socks[kFIRParameterIndex] = @3;

// Prepare ecommerce parameters
NSMutableDictionary *itemList = [@{
  kFIRParameterItemListID: @"L001",
  kFIRParameterItemListName: @"Related products",
} mutableCopy];

// Add items array
itemList[kFIRParameterItems] = @[jeggings, boots, socks];

// Log view item list event
[FIRAnalytics logEventWithName:kFIREventViewItemList parameters:itemList];
AnalyticsHelper.m

Kotlin+KTX 

val itemJeggingsWithIndex = Bundle(itemJeggings).apply {
    putLong(FirebaseAnalytics.Param.INDEX, 1)
}
val itemBootsWithIndex = Bundle(itemBoots).apply {
    putLong(FirebaseAnalytics.Param.INDEX, 2)
}
val itemSocksWithIndex = Bundle(itemSocks).apply {
    putLong(FirebaseAnalytics.Param.INDEX, 3)
}

analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM_LIST) {
    param(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001")
    param(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products")
    param(FirebaseAnalytics.Param.ITEMS,
            arrayOf(itemJeggingsWithIndex, itemBootsWithIndex, itemSocksWithIndex))
}
MainActivity.kt

Java 

Bundle itemJeggingsWithIndex = new Bundle(itemJeggings);
itemJeggingsWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 1);

Bundle itemBootsWithIndex = new Bundle(itemBoots);
itemBootsWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 2);

Bundle itemSocksWithIndex = new Bundle(itemSocks);
itemSocksWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 3);

Bundle viewItemListParams = new Bundle();
viewItemListParams.putString(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001");
viewItemListParams.putString(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products");
viewItemListParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsWithIndex, itemBootsWithIndex, itemSocksWithIndex });
analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM_LIST, viewItemListParams);

Web v8 

// Prepare ecommerce params
const params1 = {
  item_list_id: 'L001',
  item_list_name: 'Related products',
  items: [item_jeggings, item_boots, item_socks]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.VIEW_ITEM_LIST, params1);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params1 = {
  item_list_id: 'L001',
  item_list_name: 'Related products',
  items: [item_jeggings, item_boots, item_socks]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'view_item_list', params1);

Once a user selects a particular product from the list, log a select_item event with the chosen product in an items array parameter.

Swift 

// Prepare ecommerce parameters
var selectedItem: [String: Any] = [
  AnalyticsParameterItemListID: "L001",
  AnalyticsParameterItemListName: "Related products",
]

// Add items array
selectedItem[AnalyticsParameterItems] = [jeggings]

// Log select item event
Analytics.logEvent(AnalyticsEventSelectItem, parameters: selectedItem)
ViewController.swift

Objective-C 

// Prepare ecommerce parameters
NSMutableDictionary *selectedItem = [@{
  kFIRParameterItemListID: @"L001",
  kFIRParameterItemListName: @"Related products",
} mutableCopy];

// Add items array
selectedItem[kFIRParameterItems] = @[jeggings];

// Log select item event
[FIRAnalytics logEventWithName:kFIREventSelectItem parameters:selectedItem];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.SELECT_ITEM) {
    param(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001")
    param(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products")
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggings))
}
MainActivity.kt

Java 

Bundle selectItemParams = new Bundle();
selectItemParams.putString(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001");
selectItemParams.putString(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products");
selectItemParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggings });
analytics.logEvent(FirebaseAnalytics.Event.SELECT_ITEM, selectItemParams);

Web v8 

// Prepare ecommerce event params
const params2 = {
  item_list_id: 'L001',
  item_list_name: 'Related products',
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.SELECT_ITEM, params2);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce event params
const params2 = {
  item_list_id: 'L001',
  item_list_name: 'Related products',
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'select_item', params2);

View product details

To measure how many times product details are viewed, log a view_item event whenever a user views a product’s details screen.

Swift 

// Prepare ecommerce parameters
var productDetails: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 9.99
]

// Add items array
productDetails[AnalyticsParameterItems] = [jeggings]

// Log view item event
Analytics.logEvent(AnalyticsEventViewItem, parameters: productDetails)
ViewController.swift

Objective-C 

// Prepare ecommerce parameters
NSMutableDictionary *productDetails = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @9.99
} mutableCopy];

// Add items array
productDetails[kFIRParameterItems] = @[jeggings];

// Log view item event
[FIRAnalytics logEventWithName:kFIREventViewItem parameters:productDetails];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 9.99)
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggings))
}
MainActivity.kt

Java 

Bundle viewItemParams = new Bundle();
viewItemParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
viewItemParams.putDouble(FirebaseAnalytics.Param.VALUE, 9.99);
viewItemParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[] { itemJeggings });

analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM, viewItemParams);

Web v8 

  // Prepare ecommerce event params
  const params3 = {
    currency: 'USD',
    value: 9.99,
    items: [item_jeggings]
  };

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.VIEW_ITEM, params3);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce event params
const params3 = {
  currency: 'USD',
  value: 9.99,
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'view_item', params3);

Add or remove a product from a shopping cart

Measure a product being added to a wishlist or cart by logging an add_to_wishlist or add_to_cart event, respectively, with the relevant products in an items array parameter.

Swift 

// Specify order quantity
jeggings[AnalyticsParameterQuantity] = 2

// Prepare item detail params
var itemDetails: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 19.98
]

// Add items
itemDetails[AnalyticsParameterItems] = [jeggings]

// Log an event when product is added to wishlist
Analytics.logEvent(AnalyticsEventAddToWishlist, parameters: itemDetails)

// Log an event when product is added to cart
Analytics.logEvent(AnalyticsEventAddToCart, parameters: itemDetails)
ViewController.swift

Objective-C 

// Specify order quantity
jeggings[kFIRParameterQuantity] = @2;

// Prepare item detail params
NSMutableDictionary *itemDetails = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @19.98
} mutableCopy];

// Add items
itemDetails[kFIRParameterItems] = @[jeggings];

// Log an event when product is added to wishlist
[FIRAnalytics logEventWithName:kFIREventAddToWishlist parameters:itemDetails];

// Log an event when product is added to cart
[FIRAnalytics logEventWithName:kFIREventAddToCart parameters:itemDetails];
AnalyticsHelper.m

Kotlin+KTX 

val itemJeggingsWishlist = Bundle(itemJeggings).apply {
    putLong(FirebaseAnalytics.Param.QUANTITY, 2)
}

analytics.logEvent(FirebaseAnalytics.Event.ADD_TO_WISHLIST) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 2 * 9.99)
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsWishlist))
}
MainActivity.kt

Java 

Bundle itemJeggingsWishlist = new Bundle(itemJeggings);
itemJeggingsWishlist.putLong(FirebaseAnalytics.Param.QUANTITY, 2);

Bundle addToWishlistParams = new Bundle();
addToWishlistParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
addToWishlistParams.putDouble(FirebaseAnalytics.Param.VALUE, 2 * 9.99);
addToWishlistParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsWishlist });

analytics.logEvent(FirebaseAnalytics.Event.ADD_TO_WISHLIST, addToWishlistParams);

Web v8 

// Specify order quantity
const item_jeggings_quantity = {
  ...item_jeggings,
  quantity: 2
};

// Prepare ecommerce bundle
const params4 = {
  currency: 'USD',
  value: 19.98,
  items: [item_jeggings_quantity]
};

// Log event when a product is added to a wishlist
firebase.analytics().logEvent(firebase.analytics.EventName.ADD_TO_WISHLIST, params4);

// Log event when a product is added to the cart
firebase.analytics().logEvent(firebase.analytics.EventName.ADD_TO_CART, params4);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Specify order quantity
const item_jeggings_quantity = {
  ...item_jeggings,
  quantity: 2
};

// Prepare ecommerce bundle
const params4 = {
  currency: 'USD',
  value: 19.98,
  items: [item_jeggings_quantity]
};

// Log event when a product is added to a wishlist
const analytics = getAnalytics();
logEvent(analytics, 'add_to_wishlist', params4);

// Log event when a product is added to the cart
logEvent(analytics, 'add_to_cart', params4);

When a user subsequently views the cart, log the view_cart event with all items in the cart.

Swift 

// Specify order quantity
jeggings[AnalyticsParameterQuantity] = 2
boots[AnalyticsParameterQuantity] = 1

// Prepare order parameters
var orderParameters: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 44.97
]

// Add items array
orderParameters[AnalyticsParameterItems] = [jeggings, boots]

// Log event when cart is viewed
Analytics.logEvent(AnalyticsEventViewCart, parameters: orderParameters)
ViewController.swift

Objective-C 

// Specify order quantity
jeggings[kFIRParameterQuantity] = @2;
boots[kFIRParameterQuantity] = @1;

// Prepare order parameters
NSMutableDictionary *orderParameters = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @44.97
} mutableCopy];

// Add items array
orderParameters[kFIRParameterItems] = @[jeggings, boots];

// Log event when cart is viewed
[FIRAnalytics logEventWithName:kFIREventViewCart parameters:orderParameters];
AnalyticsHelper.m

Kotlin+KTX 

val itemJeggingsCart = Bundle(itemJeggings).apply {
    putLong(FirebaseAnalytics.Param.QUANTITY, 2)
}
val itemBootsCart = Bundle(itemBoots).apply {
    putLong(FirebaseAnalytics.Param.QUANTITY, 1)
}

analytics.logEvent(FirebaseAnalytics.Event.VIEW_CART) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 2 * 9.99 + 1 * 24.99)
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsCart, itemBootsCart))
}
MainActivity.kt

Java 

Bundle itemJeggingsCart = new Bundle(itemJeggings);
itemJeggingsCart.putLong(FirebaseAnalytics.Param.QUANTITY, 2);

Bundle itemBootsCart = new Bundle(itemBoots);
itemBootsCart.putLong(FirebaseAnalytics.Param.QUANTITY, 1);

Bundle viewCartParams = new Bundle();
viewCartParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
viewCartParams.putDouble(FirebaseAnalytics.Param.VALUE, (2 * 9.99) + (1 * 24.99));
viewCartParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart, itemBootsCart });

analytics.logEvent(FirebaseAnalytics.Event.VIEW_CART, viewCartParams);

Web v8 

// Specify order quantity
const item_jeggings_quantity = {
  ...item_jeggings,
  quantity: 2
};

const item_boots_quantity = {
  ...item_boots,
  quantity: 1
};

// Prepare ecommerce params
const params5 = {
  currency: 'USD',
  value: 44.97,
  items: [item_jeggings_quantity, item_boots_quantity]
};

// Log event when the cart is viewed
firebase.analytics().logEvent(firebase.analytics.EventName.VIEW_CART, params5);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Specify order quantity
const item_jeggings_quantity = {
  ...item_jeggings,
  quantity: 2
};

const item_boots_quantity = {
  ...item_boots,
  quantity: 1
};

// Prepare ecommerce params
const params5 = {
  currency: 'USD',
  value: 44.97,
  items: [item_jeggings_quantity, item_boots_quantity]
};

// Log event when the cart is viewed
const analytics = getAnalytics();
logEvent(analytics, 'view_cart', params5);

To measure when a user removes a product from a cart, log the remove_from_cart event.

Swift 

// Specify removal quantity
boots[AnalyticsParameterQuantity] = 1

// Prepare params
var removeParams: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 24.99
]

// Add items
removeParams[AnalyticsParameterItems] = [boots]

// Log removal event
Analytics.logEvent(AnalyticsEventRemoveFromCart, parameters: removeParams)
ViewController.swift

Objective-C 

// Specify removal quantity
boots[kFIRParameterQuantity] = @1;

// Prepare params
NSMutableDictionary *removeParams = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @24.99
} mutableCopy];

// Add items
removeParams[kFIRParameterItems] = @[boots];

// Log removal event
[FIRAnalytics logEventWithName:kFIREventRemoveFromCart parameters:removeParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.REMOVE_FROM_CART) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 1 * 24.99)
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemBootsCart))
}
MainActivity.kt

Java 

Bundle removeCartParams = new Bundle();
removeCartParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
removeCartParams.putDouble(FirebaseAnalytics.Param.VALUE, (1 * 24.99));
removeCartParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemBootsCart });

analytics.logEvent(FirebaseAnalytics.Event.REMOVE_FROM_CART, removeCartParams);

Web v8 

// Prepare ecommerce params
const params6 = {
  currency: 'USD',
  value: 24.99,
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.REMOVE_FROM_CART, params6);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params6 = {
  currency: 'USD',
  value: 24.99,
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'remove_from_cart', params6);

Initiate the checkout process

Measure the first step in a checkout process by logging a begin_checkout event with one or more items defined with the relevant fields. A coupon can also be added at this stage to the entire order by adding it to the event or applied to a particular item by adding it to specific elements in the items array.

Swift 

// Prepare checkout params
var checkoutParams: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 14.98,
  AnalyticsParameterCoupon: "SUMMER_FUN"
];

// Add items
checkoutParams[AnalyticsParameterItems] = [jeggings]

// Log checkout event
Analytics.logEvent(AnalyticsEventBeginCheckout, parameters: checkoutParams)
ViewController.swift

Objective-C 

// Prepare checkout params
NSMutableDictionary *checkoutParams = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @14.98,
  kFIRParameterCoupon: @"SUMMER_FUN"
} mutableCopy];

// Add items
checkoutParams[kFIRParameterItems] = @[jeggings];

// Log checkout event
[FIRAnalytics logEventWithName:kFIREventBeginCheckout parameters:checkoutParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.BEGIN_CHECKOUT) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 14.98)
    param(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN")
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsCart))
}
MainActivity.kt

Java 

Bundle beginCheckoutParams = new Bundle();
beginCheckoutParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
beginCheckoutParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
beginCheckoutParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
beginCheckoutParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart });

analytics.logEvent(FirebaseAnalytics.Event.BEGIN_CHECKOUT, beginCheckoutParams);

Web v8 

// Prepare ecommerce params
const params7 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.BEGIN_CHECKOUT, params7);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params7 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'begin_checkout', params7);

When a user proceeds to the next step in the checkout process and adds shipping information, log an add_shipping_info event. Use the parameter shipping_tier to specify the user’s delivery option, such as "Ground", "Air", or "Next-day".

Swift 

// Prepare shipping params
var shippingParams: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 14.98,
  AnalyticsParameterCoupon: "SUMMER_FUN",
  AnalyticsParameterShippingTier: "Ground"
]

// Add items
shippingParams[AnalyticsParameterItems] = [jeggings]

// Log added shipping info event
Analytics.logEvent(AnalyticsEventAddShippingInfo, parameters: shippingParams)
ViewController.swift

Objective-C 

// Prepare shipping params
NSMutableDictionary *shippingParams = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @14.98,
  kFIRParameterCoupon: @"SUMMER_FUN",
  kFIRParameterShippingTier: @"Ground"
} mutableCopy];

// Add items
shippingParams[kFIRParameterItems] = @[jeggings];

// Log added shipping info event
[FIRAnalytics logEventWithName:kFIREventAddShippingInfo parameters:shippingParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.ADD_SHIPPING_INFO) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 14.98)
    param(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN")
    param(FirebaseAnalytics.Param.SHIPPING_TIER, "Ground")
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsCart))
}
MainActivity.kt

Java 

Bundle addShippingParams = new Bundle();
addShippingParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
addShippingParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
addShippingParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
addShippingParams.putString(FirebaseAnalytics.Param.SHIPPING_TIER, "Ground");
addShippingParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart });

analytics.logEvent(FirebaseAnalytics.Event.ADD_SHIPPING_INFO, addShippingParams);

Web v8 

// Prepare ecommerce params
const params8 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  shipping_tier: 'Ground',
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.ADD_SHIPPING_INFO, params8);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params8 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  shipping_tier: 'Ground',
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'add_shipping_info', params8);

Log add_payment_info when a user submits their payment information. If applicable, include payment_type with this event for the chosen method of payment.

Swift 

// Prepare payment params
var paymentParams: [String: Any] = [
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 14.98,
  AnalyticsParameterCoupon: "SUMMER_FUN",
  AnalyticsParameterPaymentType: "Visa"
]

// Add items
paymentParams[AnalyticsParameterItems] = [jeggings]

// Log added payment info event
Analytics.logEvent(AnalyticsEventAddPaymentInfo, parameters: paymentParams)
ViewController.swift

Objective-C 

// Prepare payment params
NSMutableDictionary *paymentParams = [@{
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @14.98,
  kFIRParameterCoupon: @"SUMMER_FUN",
  kFIRParameterPaymentType: @"Visa"
} mutableCopy];

// Add items
paymentParams[kFIRParameterItems] = @[jeggings];

// Log added payment info event
[FIRAnalytics logEventWithName:kFIREventAddPaymentInfo parameters:paymentParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.ADD_PAYMENT_INFO) {
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 14.98)
    param(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN")
    param(FirebaseAnalytics.Param.PAYMENT_TYPE, "Visa")
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsCart))
}
MainActivity.kt

Java 

Bundle addPaymentParams = new Bundle();
addPaymentParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
addPaymentParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
addPaymentParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
addPaymentParams.putString(FirebaseAnalytics.Param.PAYMENT_TYPE, "Visa");
addPaymentParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart });

analytics.logEvent(FirebaseAnalytics.Event.ADD_PAYMENT_INFO, addPaymentParams);

Web v8 

// Prepare ecommerce params
const params9 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  payment_type: 'Visa',
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.ADD_PAYMENT_INFO, params9);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params9 = {
  currency: 'USD',
  value: 14.98, // Total Revenue
  coupon: 'SUMMER_FUN',
  payment_type: 'Visa',
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'add_payment_info', params9);

Make a purchase or issue a refund

Measure a purchase by logging a purchase event with one or more items defined with the relevant fields.

Swift 

// Prepare purchase params
var purchaseParams: [String: Any] = [
  AnalyticsParameterTransactionID: "T12345",
  AnalyticsParameterAffiliation: "Google Store",
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 14.98,
  AnalyticsParameterTax: 2.58,
  AnalyticsParameterShipping: 5.34,
  AnalyticsParameterCoupon: "SUMMER_FUN"
]

// Add items
purchaseParams[AnalyticsParameterItems] = [jeggings]

// Log purchase event
Analytics.logEvent(AnalyticsEventPurchase, parameters: purchaseParams)
ViewController.swift

Objective-C 

// Prepare purchase params
NSMutableDictionary *purchaseParams = [@{
  kFIRParameterTransactionID: @"T12345",
  kFIRParameterAffiliation: @"Google Store",
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @14.98,
  kFIRParameterTax: @2.58,
  kFIRParameterShipping: @5.34,
  kFIRParameterCoupon: @"SUMMER_FUN"
} mutableCopy];

// Add items
purchaseParams[kFIRParameterItems] = @[jeggings];

// Log purchase event
[FIRAnalytics logEventWithName:kFIREventPurchase parameters:purchaseParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.PURCHASE) {
    param(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345")
    param(FirebaseAnalytics.Param.AFFILIATION, "Google Store")
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 14.98)
    param(FirebaseAnalytics.Param.TAX, 2.58)
    param(FirebaseAnalytics.Param.SHIPPING, 5.34)
    param(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN")
    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggingsCart))
}
MainActivity.kt

Java 

Bundle purchaseParams = new Bundle();
purchaseParams.putString(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345");
purchaseParams.putString(FirebaseAnalytics.Param.AFFILIATION, "Google Store");
purchaseParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
purchaseParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
purchaseParams.putDouble(FirebaseAnalytics.Param.TAX, 2.58);
purchaseParams.putDouble(FirebaseAnalytics.Param.SHIPPING, 5.34);
purchaseParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
purchaseParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggingsCart });

analytics.logEvent(FirebaseAnalytics.Event.PURCHASE, purchaseParams);

Web v8 

// Prepare ecommerce bundle
const params10 = {
  transaction_id: 'T12345',
  affiliation: 'Google Store',
  currency: 'USD',
  value: 14.98, // Total Revenue
  tax: 2.85,
  shipping: 5.34,
  coupon: 'SUMMER_FUN',
  items: [item_jeggings]
};

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.PURCHASE, params10);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce bundle
const params10 = {
  transaction_id: 'T12345',
  affiliation: 'Google Store',
  currency: 'USD',
  value: 14.98, // Total Revenue
  tax: 2.85,
  shipping: 5.34,
  coupon: 'SUMMER_FUN',
  items: [item_jeggings]
};

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'purchase', params10);

Measure refunds by logging a refund event with the relevant transaction_id specified and optionally (for partial refunds) one or more items defined with item_id and quantity.

Swift 

// Prepare refund params
var refundParams: [String: Any] = [
  AnalyticsParameterTransactionID: "T12345",
  AnalyticsParameterCurrency: "USD",
  AnalyticsParameterValue: 9.99,
]

// (Optional) for partial refunds, define the item ID and quantity of refunded items
let refundedProduct: [String: Any] = [
  AnalyticsParameterItemID: "SKU_123",
  AnalyticsParameterQuantity: 1,
];

// Add items
refundParams[AnalyticsParameterItems] = [refundedProduct]

// Log refund event
Analytics.logEvent(AnalyticsEventRefund, parameters: refundParams)
ViewController.swift

Objective-C 

// Prepare refund params
NSMutableDictionary *refundParams = [@{
  kFIRParameterTransactionID: @"T12345",
  kFIRParameterCurrency: @"USD",
  kFIRParameterValue: @9.99,
} mutableCopy];

// (Optional) for partial refunds, define the item ID and quantity of refunded items
NSDictionary *refundedProduct = @{
  kFIRParameterItemID: @"SKU_123",
  kFIRParameterQuantity: @1,
};

// Add items
refundParams[kFIRParameterItems] = @[refundedProduct];

// Log refund event
[FIRAnalytics logEventWithName:kFIREventRefund parameters:refundParams];
AnalyticsHelper.m

Kotlin+KTX 

analytics.logEvent(FirebaseAnalytics.Event.REFUND) {
    param(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345")
    param(FirebaseAnalytics.Param.AFFILIATION, "Google Store")
    param(FirebaseAnalytics.Param.CURRENCY, "USD")
    param(FirebaseAnalytics.Param.VALUE, 9.99)

    // (Optional) for partial refunds, define the item ID and quantity of refunded items
    param(FirebaseAnalytics.Param.ITEM_ID, "SKU_123")
    param(FirebaseAnalytics.Param.QUANTITY, 1)

    param(FirebaseAnalytics.Param.ITEMS, arrayOf(itemJeggings))
}
MainActivity.kt

Java 

Bundle refundParams = new Bundle();
refundParams.putString(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345");
refundParams.putString(FirebaseAnalytics.Param.AFFILIATION, "Google Store");
refundParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
refundParams.putDouble(FirebaseAnalytics.Param.VALUE, 9.99);

// (Optional) for partial refunds, define the item ID and quantity of refunded items
refundParams.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123");
refundParams.putLong(FirebaseAnalytics.Param.QUANTITY, 1);

refundParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggings });

analytics.logEvent(FirebaseAnalytics.Event.REFUND, refundParams);

Web v8 

// Prepare ecommerce params
const params11 = {
  transaction_id: 'T12345', // Required
  affiliation: 'Google Store',
  currency: 'USD',
  value: 9.99,
  items: []
};

// (Optional) For partial refunds, define the item_id and quantity of refunded items
const refundedProduct = {
  item_id: 'SKU_123', // Required
  quantity: 1 // Required
};

params11.items.push(refundedProduct);

// Log event
firebase.analytics().logEvent(firebase.analytics.EventName.REFUND, params11);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params11 = {
  transaction_id: 'T12345', // Required
  affiliation: 'Google Store',
  currency: 'USD',
  value: 9.99,
  items: []
};

// (Optional) For partial refunds, define the item_id and quantity of refunded items
const refundedProduct = {
  item_id: 'SKU_123', // Required
  quantity: 1 // Required
};

params11.items.push(refundedProduct);

// Log event
const analytics = getAnalytics();
logEvent(analytics, 'refund', params11);

Apply promotions

Ecommerce includes support for measuring impressions and clicks of internal promotions, such as banners displayed to promote a sale.

Promotion impressions are typically measured with the initial screen view by logging the view_promotion event with an items parameter to specify the promoted product. To indicate a user clicked on a promotion, log a select_promotion event with that product as an item parameter.

Swift 

// Prepare promotion parameters
var promoParams: [String: Any] = [
  AnalyticsParameterPromotionID: "T12345",
  AnalyticsParameterPromotionName:"Summer Sale",
  AnalyticsParameterCreativeName: "summer2020_promo.jpg",
  AnalyticsParameterCreativeSlot: "featured_app_1",
  AnalyticsParameterLocationID: "HERO_BANNER",
]

// Add items
promoParams[AnalyticsParameterItems] = [jeggings]

// Log event when promotion is displayed
Analytics.logEvent(AnalyticsEventViewPromotion, parameters: promoParams)

// Log event when promotion is selected
Analytics.logEvent(AnalyticsEventSelectPromotion, parameters: promoParams)
ViewController.swift

Objective-C 

// Prepare promotion parameters
NSMutableDictionary *promoParams = [@{
  kFIRParameterPromotionID: @"T12345",
  kFIRParameterPromotionName:@"Summer Sale",
  kFIRParameterCreativeName: @"summer2020_promo.jpg",
  kFIRParameterCreativeSlot: @"featured_app_1",
  kFIRParameterLocationID: @"HERO_BANNER",
} mutableCopy];

// Add items
promoParams[kFIRParameterItems] = @[jeggings];

// Log event when promotion is displayed
[FIRAnalytics logEventWithName:kFIREventViewPromotion parameters:promoParams];

// Log event when promotion is selected
[FIRAnalytics logEventWithName:kFIREventSelectPromotion parameters:promoParams];
AnalyticsHelper.m

Kotlin+KTX 

val promoParams = Bundle().apply {
    putString(FirebaseAnalytics.Param.PROMOTION_ID, "SUMMER_FUN")
    putString(FirebaseAnalytics.Param.PROMOTION_NAME, "Summer Sale")
    putString(FirebaseAnalytics.Param.CREATIVE_NAME, "summer2020_promo.jpg")
    putString(FirebaseAnalytics.Param.CREATIVE_SLOT, "featured_app_1")
    putString(FirebaseAnalytics.Param.LOCATION_ID, "HERO_BANNER")
    putParcelableArray(FirebaseAnalytics.Param.ITEMS, arrayOf<Parcelable>(itemJeggings))
}

// Promotion displayed
analytics.logEvent(FirebaseAnalytics.Event.VIEW_PROMOTION, promoParams)

// Promotion selected
analytics.logEvent(FirebaseAnalytics.Event.SELECT_PROMOTION, promoParams)
MainActivity.kt

Java 

Bundle promoParams = new Bundle();
promoParams.putString(FirebaseAnalytics.Param.PROMOTION_ID, "SUMMER_FUN");
promoParams.putString(FirebaseAnalytics.Param.PROMOTION_NAME, "Summer Sale");
promoParams.putString(FirebaseAnalytics.Param.CREATIVE_NAME, "summer2020_promo.jpg");
promoParams.putString(FirebaseAnalytics.Param.CREATIVE_SLOT, "featured_app_1");
promoParams.putString(FirebaseAnalytics.Param.LOCATION_ID, "HERO_BANNER");
promoParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
        new Parcelable[]{ itemJeggings });

// Promotion displayed
analytics.logEvent(FirebaseAnalytics.Event.VIEW_PROMOTION, promoParams);

// Promotion selected
analytics.logEvent(FirebaseAnalytics.Event.SELECT_PROMOTION, promoParams);

Web v8 

// Prepare ecommerce params
const params12 = {
  promotion_id: 'ABC123',
  promotion_name: 'Summer Sale',
  creative_name: 'summer2020_promo.jpg',
  creative_slot: 'featured_app_1',
  location_id: 'HERO_BANNER',
  items: [item_jeggings]
};

// Log event when a promotion is displayed
firebase.analytics().logEvent(firebase.analytics.EventName.VIEW_PROMOTION, params12);

// Log event when a promotion is selected
firebase.analytics().logEvent(firebase.analytics.EventName.SELECT_PROMOTION, params12);

Web v9 

import { getAnalytics, logEvent } from "firebase/analytics";

// Prepare ecommerce params
const params12 = {
  promotion_id: 'ABC123',
  promotion_name: 'Summer Sale',
  creative_name: 'summer2020_promo.jpg',
  creative_slot: 'featured_app_1',
  location_id: 'HERO_BANNER',
  items: [item_jeggings]
};

// Log event when a promotion is displayed
const analytics = getAnalytics();
logEvent(analytics, 'view_promotion', params12);

// Log event when a promotion is selected
logEvent(analytics, 'select_promotion', params12);