Amazon EventBridge introduces enhanced custom event buses for multi-account event-driven applications

Addressing Multi-Account Complexity

Organizations building event-driven applications on Amazon EventBridge often face challenges when scaling across multiple AWS accounts. The previous approach involved creating multiple event buses connected via cross-account rules or bus-to-bus configurations, leading to increased operational complexity and routing charges.

Introduction of Enhanced Custom Event Buses

Amazon EventBridge has introduced enhanced custom event buses designed for organizations scaling event-driven applications across teams and accounts. This new feature allows for the deployment of a single, centralized event bus shared across all AWS accounts within an organization.

Key Features and Benefits

The enhanced custom event bus provides ordering guarantees for events, a simplified Subscriber resource, and a new pricing model. This model aims to deliver improved economics at scale and facilitates cost allocation between publishers and subscribers, reducing the compounding charges of previous methods.

Getting Started

Users can access the new enhanced custom event bus through the EventBridge console in the AWS Management Console. The 'Custom event bus' option, labeled 'New', is the recommended choice, while the 'Custom event bus – classic' remains available for existing workloads. Configuration includes enabling event bus sharing within the organization.