sap-event-mesh

SAP Event Mesh & Event-Driven Architecture

Related Skills

• sap-kyma-runtime — Event-driven Functions on Kyma consuming Event Mesh
• sap-s4hana-extensibility — S/4HANA business events as event sources
• sap-build-process-automation — Trigger workflows from events

Quick Start

Choose your event broker:

Broker	Use Case	Protocol	Scale
SAP Event Mesh	BTP-native events, simple pub/sub	AMQP 1.0, REST, MQTT	Standard workloads
Advanced Event Mesh	Enterprise event mesh, multi-cloud	AMQP, MQTT, REST, SMF, JMS, WebSocket	High throughput, global

Minimal CAP event producer:

// srv/order-service.js
const cds = require('@sap/cds');

module.exports = class OrderService extends cds.ApplicationService {
  async init() {
    this.after('CREATE', 'Orders', async (order) => {
      const msg = await cds.connect.to('messaging');
      await msg.emit('sap/sales/order/created/v1', {
        orderId: order.ID,
        customer: order.customer_ID,
        total: order.total
      });
    });
    await super.init();
  }
};

Core Concepts

CloudEvents Specification

SAP Event Mesh uses CloudEvents 1.0 standard:

{
  "specversion": "1.0",
  "type": "sap.s4.beh.salesorder.v1.SalesOrder.Created.v1",
  "source": "/default/sap.s4.beh/S4HANA_CLD",
  "id": "a1b2c3d4-5678-90ab-cdef",
  "time": "2026-03-24T10:00:00Z",
  "datacontenttype": "application/json",
  "data": {
    "SalesOrder": "1000001",
    "SalesOrganization": "1010",
    "SoldToParty": "CUST001"
  }
}

Topic Naming Convention

{namespace}/{business-object}/{event-type}/{version}

Examples:
sap.s4.beh/salesorder/created/v1
sap.s4.beh/businesspartner/changed/v1
custom/myapp/order/fulfilled/v1

Hierarchy rules:

• Use / as level separator
• Wildcards: + (single level), * (multi-level) — for subscriptions only
• Subscription example: sap/s4/beh/+/created/v1 matches all "created" events