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Log eCommerce events

Learn how to log eCommerce recommended events through the Braze Android SDK using typed event classes and Braze.logEcommerceEvent. For event property schemas, platform features, and ingestion validation, see Recommended events and Event validation and troubleshooting.

Android SDK 42.3.0+ provides typed eCommerce event classes with client-side validation at construction time and automatic snake_case serialization when you call Braze.logEcommerceEvent.

Android class Event name Notes
ProductViewedEvent ecommerce.product_viewed Flattens product fields to the top level of properties (no products array). This class does not support the top-level type property for catalog triggers. If you need type, use logCustomEvent or the REST API.
CartUpdatedEvent ecommerce.cart_updated Use CartUpdatedAction (ADD, REMOVE, REPLACE) for the action property.
CheckoutStartedEvent ecommerce.checkout_started  
OrderPlacedEvent ecommerce.order_placed Supports optional cartId, totalDiscounts, and discounts.

Shared building blocks

  • EcommerceProduct: Line items for cart, checkout, and order events.
    • Required: productId, productName, variantId, price, quantity (non-negative Long)
    • Optional: imageUrl, productUrl, metadata
  • BrazeProperties: Event-level or product-level metadata. Keys must be non-empty strings that are at least 255 characters with no leading dollar sign ($).

Client-side validation

Invalid payloads throw IllegalArgumentException when you construct the event class, so the event is never queued. Common rules:

Field or rule Validation
String IDs and names (product_id, product_name, variant_id, cart_id, checkout_id, order_id, source, optional URLs) Non-blank, up to 255 characters
price, total_value, total_discounts Must be greater than or equal to 0
currency Valid ISO 4217 code (trimmed and converted to uppercase by the SDK)
products (cart, checkout, order events) At least one EcommerceProduct
quantity (per product) Non-negative integer

At dispatch time, if serialized properties exceed the SDK size limit, logEcommerceEvent logs an error and does not send the event.

Code examples

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import com.braze.Braze
import com.braze.models.outgoing.BrazeProperties
import com.braze.models.recommended.ecommerce.ProductViewedEvent

val metadata = BrazeProperties()
  .addProperty("sku", "SS-R-101")
  .addProperty("category", "Apparel")

val productViewedEvent = ProductViewedEvent(
  productId = "PROD101",
  productName = "Silk Scarf",
  variantId = "SCARF_RED_SILK",
  price = 150.00,
  currency = "EUR",
  source = "https://braze-fashion.eu",
  imageUrl = "https://braze-fashion.eu/images/scarf_red.jpg",
  productUrl = "https://braze-fashion.eu/products/scarf",
  metadata = metadata,
)

Braze.getInstance(context).logEcommerceEvent(productViewedEvent)

Set action using CartUpdatedAction:

Value Wire value Description
CartUpdatedAction.ADD add Increase quantity or add a line.
CartUpdatedAction.REMOVE remove Decrease quantity; remove the line at 0.
CartUpdatedAction.REPLACE replace Replace the full cart (default). 
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import com.braze.Braze
import com.braze.models.recommended.ecommerce.CartUpdatedAction
import com.braze.models.recommended.ecommerce.CartUpdatedEvent
import com.braze.models.recommended.ecommerce.EcommerceProduct

val product = EcommerceProduct(
  productId = "SKU-RUN-4821",
  productName = "Ultraboost Running Shoe",
  variantId = "UB-BLK-11",
  price = 189.99,
  quantity = 1,
)

val cartUpdatedEvent = CartUpdatedEvent(
  cartId = "cart_abc123",
  currency = "USD",
  source = "android",
  totalValue = 189.99,
  products = listOf(product),
  action = CartUpdatedAction.ADD,
)

Braze.getInstance(context).logEcommerceEvent(cartUpdatedEvent)

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import com.braze.Braze
import com.braze.models.outgoing.BrazeProperties
import com.braze.models.recommended.ecommerce.CheckoutStartedEvent
import com.braze.models.recommended.ecommerce.EcommerceProduct

val products = listOf(
  EcommerceProduct(
    productId = "SKU-RUN-4821",
    productName = "Ultraboost Running Shoe",
    variantId = "UB-BLK-11",
    price = 189.99,
    quantity = 1,
  ),
)

val checkoutStartedEvent = CheckoutStartedEvent(
  checkoutId = "chk_88291",
  currency = "USD",
  source = "android",
  totalValue = 234.96,
  products = products,
  cartId = "cart_abc123",
  metadata = BrazeProperties().addProperty("checkout_url", "https://www.example.com/checkout/chk_88291"),
)

Braze.getInstance(context).logEcommerceEvent(checkoutStartedEvent)

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import com.braze.Braze
import com.braze.models.outgoing.BrazeProperties
import com.braze.models.recommended.ecommerce.EcommerceProduct
import com.braze.models.recommended.ecommerce.OrderPlacedEvent

val products = listOf(
  EcommerceProduct(
    productId = "SKU-RUN-4821",
    productName = "Ultraboost Running Shoe",
    variantId = "UB-BLK-11",
    price = 189.99,
    quantity = 1,
  ),
)

val orderPlacedEvent = OrderPlacedEvent(
  orderId = "ord_77821",
  currency = "USD",
  source = "android",
  totalValue = 224.96,
  products = products,
  cartId = "cart_abc123",
  totalDiscounts = 10.0,
  discounts = listOf(
    mapOf("code" to "SPRING10", "amount" to 10.0, "type" to "percentage"),
  ),
  metadata = BrazeProperties().addProperty("order_status_url", "https://www.example.com/orders/ord_77821/status"),
)

Braze.getInstance(context).logEcommerceEvent(orderPlacedEvent)

Braze does not provide a typed SDK class for this event. Use logCustomEvent with a payload that matches the ecommerce.order_cancelled event schema.

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import com.braze.Braze
import com.braze.models.outgoing.BrazeProperties
import org.json.JSONArray
import org.json.JSONObject

val properties = BrazeProperties(
  JSONObject()
    .put("order_id", "ord_77821")
    .put("total_value", 224.96)
    .put("currency", "USD")
    .put("cancel_reason", "customer_request")
    .put("source", "android")
    .put(
      "products",
      JSONArray().put(
        JSONObject()
          .put("product_id", "SKU-RUN-4821")
          .put("product_name", "Ultraboost Running Shoe")
          .put("variant_id", "UB-BLK-11")
          .put("quantity", 1)
          .put("price", 189.99),
      ),
    ),
)

Braze.getInstance(context).logCustomEvent("ecommerce.order_cancelled", properties)

Braze does not provide a typed SDK class for this event. Use logCustomEvent with a payload that matches the ecommerce.order_refunded event schema.

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import com.braze.Braze
import com.braze.models.outgoing.BrazeProperties
import org.json.JSONArray
import org.json.JSONObject

val properties = BrazeProperties(
  JSONObject()
    .put("order_id", "ord_77821")
    .put("total_value", 189.99)
    .put("currency", "USD")
    .put("source", "android")
    .put(
      "products",
      JSONArray().put(
        JSONObject()
          .put("product_id", "SKU-RUN-4821")
          .put("product_name", "Ultraboost Running Shoe")
          .put("variant_id", "UB-BLK-11")
          .put("quantity", 1)
          .put("price", 189.99),
      ),
    ),
)

Braze.getInstance(context).logCustomEvent("ecommerce.order_refunded", properties)

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import com.braze.Braze;
import com.braze.models.outgoing.BrazeProperties;
import com.braze.models.recommended.ecommerce.ProductViewedEvent;

BrazeProperties metadata = new BrazeProperties()
    .addProperty("sku", "SS-R-101")
    .addProperty("category", "Apparel");

ProductViewedEvent productViewedEvent = new ProductViewedEvent(
    /* productId */ "PROD101",
    /* productName */ "Silk Scarf",
    /* variantId */ "SCARF_RED_SILK",
    /* price */ 150.00,
    /* currency */ "EUR",
    /* source */ "https://braze-fashion.eu",
    /* imageUrl */ "https://braze-fashion.eu/images/scarf_red.jpg",
    /* productUrl */ "https://braze-fashion.eu/products/scarf",
    /* metadata */ metadata
);

Braze.getInstance(context).logEcommerceEvent(productViewedEvent);

Set action using CartUpdatedAction:

Value Wire value Description
CartUpdatedAction.ADD add Increase quantity or add a line.
CartUpdatedAction.REMOVE remove Decrease quantity; remove the line at 0.
CartUpdatedAction.REPLACE replace Replace the full cart (default). 
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import com.braze.Braze;
import com.braze.models.recommended.ecommerce.CartUpdatedAction;
import com.braze.models.recommended.ecommerce.CartUpdatedEvent;
import com.braze.models.recommended.ecommerce.EcommerceProduct;
import java.util.Collections;

EcommerceProduct product = new EcommerceProduct(
    /* productId */ "SKU-RUN-4821",
    /* productName */ "Ultraboost Running Shoe",
    /* variantId */ "UB-BLK-11",
    /* price */ 189.99,
    /* quantity */ 1
);

CartUpdatedEvent cartUpdatedEvent = new CartUpdatedEvent(
    /* cartId */ "cart_abc123",
    /* currency */ "USD",
    /* source */ "android",
    /* totalValue */ 189.99,
    /* products */ Collections.singletonList(product),
    /* metadata */ null,
    /* action */ CartUpdatedAction.ADD
);

Braze.getInstance(context).logEcommerceEvent(cartUpdatedEvent);

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import com.braze.Braze;
import com.braze.models.outgoing.BrazeProperties;
import com.braze.models.recommended.ecommerce.CheckoutStartedEvent;
import com.braze.models.recommended.ecommerce.EcommerceProduct;
import java.util.Collections;

EcommerceProduct product = new EcommerceProduct(
    /* productId */ "SKU-RUN-4821",
    /* productName */ "Ultraboost Running Shoe",
    /* variantId */ "UB-BLK-11",
    /* price */ 189.99,
    /* quantity */ 1
);

BrazeProperties metadata = new BrazeProperties()
    .addProperty("checkout_url", "https://www.example.com/checkout/chk_88291");

CheckoutStartedEvent checkoutStartedEvent = new CheckoutStartedEvent(
    /* checkoutId */ "chk_88291",
    /* currency */ "USD",
    /* source */ "android",
    /* totalValue */ 234.96,
    /* products */ Collections.singletonList(product),
    /* cartId */ "cart_abc123",
    /* metadata */ metadata
);

Braze.getInstance(context).logEcommerceEvent(checkoutStartedEvent);

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import com.braze.Braze;
import com.braze.models.outgoing.BrazeProperties;
import com.braze.models.recommended.ecommerce.EcommerceProduct;
import com.braze.models.recommended.ecommerce.OrderPlacedEvent;
import java.util.Collections;

EcommerceProduct product = new EcommerceProduct(
    /* productId */ "SKU-RUN-4821",
    /* productName */ "Ultraboost Running Shoe",
    /* variantId */ "UB-BLK-11",
    /* price */ 189.99,
    /* quantity */ 1
);

BrazeProperties metadata = new BrazeProperties()
    .addProperty("order_status_url", "https://www.example.com/orders/ord_77821/status");

OrderPlacedEvent orderPlacedEvent = new OrderPlacedEvent(
    /* orderId */ "ord_77821",
    /* currency */ "USD",
    /* source */ "android",
    /* totalValue */ 224.96,
    /* products */ Collections.singletonList(product),
    /* cartId */ "cart_abc123",
    /* totalDiscounts */ 10.0,
    /* discounts */ null,
    /* metadata */ metadata
);

Braze.getInstance(context).logEcommerceEvent(orderPlacedEvent);

Braze does not provide a typed SDK class for this event. Use logCustomEvent with a payload that matches the ecommerce.order_cancelled event schema.

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import com.braze.Braze;
import com.braze.models.outgoing.BrazeProperties;
import org.json.JSONArray;
import org.json.JSONObject;

Braze.getInstance(context).logCustomEvent(
    "ecommerce.order_cancelled",
    new BrazeProperties(new JSONObject()
        .put("order_id", "ord_77821")
        .put("total_value", 224.96)
        .put("currency", "USD")
        .put("cancel_reason", "customer_request")
        .put("source", "android")
        .put("products", new JSONArray()
            .put(new JSONObject()
                .put("product_id", "SKU-RUN-4821")
                .put("product_name", "Ultraboost Running Shoe")
                .put("variant_id", "UB-BLK-11")
                .put("quantity", 1)
                .put("price", 189.99)))));

Braze does not provide a typed SDK class for this event. Use logCustomEvent with a payload that matches the ecommerce.order_refunded event schema.

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import com.braze.Braze;
import com.braze.models.outgoing.BrazeProperties;
import org.json.JSONArray;
import org.json.JSONObject;

Braze.getInstance(context).logCustomEvent(
    "ecommerce.order_refunded",
    new BrazeProperties(new JSONObject()
        .put("order_id", "ord_77821")
        .put("total_value", 189.99)
        .put("currency", "USD")
        .put("source", "android")
        .put("products", new JSONArray()
            .put(new JSONObject()
                .put("product_id", "SKU-RUN-4821")
                .put("product_name", "Ultraboost Running Shoe")
                .put("variant_id", "UB-BLK-11")
                .put("quantity", 1)
                .put("price", 189.99)))));

Manual logging with logCustomEvent

To manually log a recommended event, call logCustomEvent with the exact event name (for example, ecommerce.product_viewed) and a manually built BrazeProperties or JSONObject payload. The SDK does not validate recommended-event schemas for manual calls. Braze validates these payloads during ingestion:

  • Valid payloads are processed as recommended events with full post-processing.
  • Invalid payloads (missing required fields, wrong types, extra top-level properties) are dropped after ingestion. Failures appear in the workspace SDK processing log and the failure summary email.

Use logEcommerceEvent when possible so you catch invalid data before it leaves the app. For general logCustomEvent usage, see Log custom events.
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