Overview

Unlike other Branch Events, you can log app store subscriptions and in-app purchases (IAPs) without needing to populate the Branch Event with transaction data yourself (although you still have that option as well).

Instead, the Branch iOS and Android SDKs include methods that turn a standard app store purchase event into a Branch Event for you. This simplifies your code and reduces development overhead for your team.

When you pass Branch a standard purchase event, we log a Branch PURCHASE Event in our system for that transaction.

Branch recommends that customers implement validation checking within their systems for these app store transactions, which can be done either on-device or server-side using APIs provided by Apple and Google.

Prerequisites

To relay subscriptions and IAPs to Branch for event mapping, you first need to:

Create a Branch Dashboard.
Integrate the appropriate Branch SDK into your mobile app (iOS | Android).

Implementation

iOS

Create a new Branch Event.

let event = BranchEvent(name: "PURCHASE")

BranchEvent *event = [[BranchEvent alloc] initWithName:@"eventName"];

Log the new Branch Event using the logEvent method, and pass that method an SKPaymentTransaction object that you've fetched from the Apple StoreKit API.

event.logEvent(with: transaction as! SKPaymentTransaction)

[event logEventWithTransaction:(SKPaymentTransaction *)transaction];

Android

On Android, use the Google Play Developer API to retrieve and pass a Purchase object to the Branch logEventWithPurchase method. This method is accessible directly from the global Branch instance.

Branch.getInstance().logEventWithPurchase(this, purchase);

Branch.getInstance().logEventWithPurchase(MainActivity.this, (Purchase) purchase);

Object Mapping

The Branch iOS and Android SDKs map transaction details from the Apple and Google APIs into a BranchUniversalObject and BranchStandardEvent for you, based on the tables in this section.

Note that Branch Universal Objects represent the thing you want to share (such as an article, video, or item for sale), and that BUO is an instance of BranchUniversalObject.

iOS to Branch Basic Mapping

Branch uses the object you pass in for transaction to look up the Product object associated with it, and maps it in the following way:

iOS	Branch
`Product.quantity`	`BUO.quantity`
`Product.description`	`BUO.description`
`Product.displayName`	`BUO.title`
`Product.price`	`BUO.price`
`Product.id`	`BUO.canonicalIdentifer`
`Product.type`	`BranchStandardEvent`

Android to Branch Basic Mapping

On Android, the purchase object you pass in is used to look up the productId and associated productDetails, and has the following mapping:

Android	Branch
`Purchase.quantity`	`BUO.quantity`
`ProductDetails.description`	`BUO.description`
`ProductDetails.title`	`BUO.title`
`ProductDetails.formattedPrice`	`BUO.price`
`ProductDetails.productId`	`BUO.canonicalIdentifer`
`ProductDetails.productType`	`BranchStandardEvent`

Additional Object Mapping on iOS and Android

Branch	iOS	Android
`BranchEvent.name`	`“Purchase”`	`“Purchase”`
`BranchEvent.Description`	`Transaction.Identifier`	`Purchase.OrderID`
`BranchEvent.Currency`	`Product.CurrencyCode`	`Product.CurrencyCode`
`BranchEvent.revenue`	`Product.Price`	`Product.Price` * `Transaction.Quantity`
`BUO.canonicalIdentifier`	`Product Identifier`	`Product.ProductID`
`BUO.title`	`Product.LocalizedTitle`	`Product.Title`
`BUO.price`	`Product.Price`	`Product.Price`
`BUO.currency`	`Product.CurrencyCode`	`Product.CurrencyCode`
`BUO.productName`	`Product.Title`	`Product.Name`
`BUO.contentDescription`	`Product.Description`	N/A
`BUO.quantity`	1	`Transaction.Quantity`
`BranchEvent.CustomerEventAlias`	`IAP` or `Subscription`	`“inapp”` or `”subs”`
`BranchEvent.CustomMetadata`	`@"transaction_identifier": _transactionID,` `@"logged_from_IAP": @true`	`("package_name", purchase.packageName) ("order_id", purchase.orderId) ("logged_from_IAP", "true") ("is_auto_renewing", purchase.isAutoRenewing.toString()) ("purchase_token", purchase.purchaseToken)`
`BUO.CustomMetadata`	`@"content_version": product.contentVersion` `@"is_downloadable": @product.isDownloadable` `@"is_family_shareable”:product.isFamilyShareable`	`("product_type", product.productType)`
`BranchEvent.ContentItems`	N/A	`ProductDetails` as `BUO`

Access the Data

Subscription and IAP event data is accessible the same way as data from other Branch Events. You can view and export the data via the Branch Dashboard, as well as through our APIs, by targeting PURCHASE Branch Events.

You can also use the Dashboard to configure the data to be sent to an ad network with a postback.

To differentiate between subscription data and IAP data, filter your analytics by the CustomerEventAlias field, the values for which can be found in the "Additional Object Mapping" table.