---
schema_version: "1"
id: 5cfe500ca28a2bc10fead813e5a745fe605ca7b575f7eaa309955ba7d111f7ed
title: Custom Event
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/data-cloud/data-cloud-engagement-mobile-sdk/guides/c360a-api-engagement-mobile-sdk-custom-event.md
canonical_url: https://developer.salesforce.com/docs/data/data-cloud-engagement-mobile-sdk/guide/c360a-api-engagement-mobile-sdk-custom-event.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 38440bc1cb8435b998d8312b4b5d2d9659a8ffcba5987fe2c81b702a49ec8b75
products:
  - Data 360 Engagement Mobile SDK
  - Data 360 Developer Documentation
---
# Custom Event

Track unique user interactions and send data that isn't covered by standard events by using custom events in the Data 360 Module for the Engagement Mobile SDK. Include a flexible payload of user-defined attributes to capture specific interaction details, then map them to a Custom Event Schema in Data 360.

The Engagement Mobile SDK currently supports two major versions: [Version 3.x](https://developer.salesforce.com/docs/data/data-cloud-engagement-mobile-sdk/guide/c360a-api-engagement-mobile-sdk-custom-event-v3.md) and [Version 2.x](https://developer.salesforce.com/docs/data/data-cloud-engagement-mobile-sdk/guide/c360a-api-engagement-mobile-sdk-custom-event-v2.md). To take advantage of the latest features and improvements, upgrade to Version 3.x.