Commerce App Eventing

Configure Commerce App Eventing

Adds or modifies event sources — Commerce-native events or external events — in an existing app.commerce.config.ts. Extensibility domains other than eventing (webhooks, business config) are added separately via their own skills.

Prerequisites

• Verify the app is scaffolded and initialized, not merely that the config exists. Require both:
• app.commerce.config.ts present in the project root, and
• the project initialized — signalled by the generated src/commerce-extensibility-1/ directory and installed node_modules (the @adobe/aio-commerce-lib-app dependency).
• If app.commerce.config.ts is missing, stop and invoke commerce-app-init first (it writes the config, then runs init).
• If the config is present but the project is not initialized (no src/commerce-extensibility-1/ or node_modules), run npx @adobe/aio-commerce-lib-app init before continuing. Init is idempotent — it finds the existing config, skips the interactive prompts, installs dependencies, and generates the project files.
• Ensure CloudIntegrationSDK (I/O Events) and commerceeventing (Adobe I/O Events for Adobe Commerce) are subscribed in the Developer Console workspace:

1. List currently subscribed services:

     aio console workspace api list --projectName <project> --workspaceName <workspace> --json

2. If either service is missing, re-subscribe with the full merged set of service codes (existing + missing). aio console workspace api add replaces the subscription list — omitting a currently-subscribed service will remove it.

     aio console workspace api add \
       --projectName <project> \
       --workspaceName <workspace> \
       --service-code <existing-codes>,CloudIntegrationSDK,commerceeventing \
       --json

If the command fails with "product profile required" for commerceeventing, ask the user for the profile name and retry with --license-config commerceeventing=<profile>.

Step 1 — Understand intent

Ask whether the user wants to configure Commerce events, external events, or both:

• Commerce events (eventing.commerce): native Commerce events. Names follow plugin.<segments> or observer.<segments>.
• External events (eventing.external): events from third-party systems (e.g., ERP, CRM). Names are free-form ([\w\-_.]+).

For each event source, gather:

• Provider label, description, and optional key
• For each event: name, label, description, and which runtime action(s) should handle it (format: <package>/<action>)
• For Commerce events only: fields to extract from the event payload (empty array captures the full payload), and any optional filter rules
• Optionally, which Commerce environments the event applies to (env)

Step 2 — Derive config values

Apply the following validation rules before writing the config. Surface any issues to the user before proceeding.

Step 3 — Update app.commerce.config.ts

Add or merge eventing.commerce and/or eventing.external into the existing config, preserving all other domains. If the config already has an eventing key, extend it rather than replacing it.

Minimal example (Commerce event):

eventing: {
  commerce: [{
    provider: { label: "Commerce Events Provider", description: "..." },
    events: [{
      name: "plugin.order_placed",          // plugin.<segments> or observer.<segments>
      label: "Order Placed",
      description: "Triggered when a customer places an order.",
      fields: [{ name: "order_id" }],       // empty array = full payload; Commerce events only
      runtimeActions: ["my-package/handle-order-placed"], // <package>/<action>
    }],
  }],
}

See assets/eventing-config.ts for the full reference including external event sources.

Creating the handler action

For events that reference runtime actions via runtimeActions, create the action file under src/actions/ and register it in app.config.yaml.

Register the action

Add a user-defined package to src/commerce-extensibility-1/ext.config.yaml alongside the existing app-management package. Use any name except app-management (reserved by the framework):

# src/commerce-extensibility-1/ext.config.yaml
# (add below the auto-generated app-management package)
runtimeManifest:
  packages:
    app-management:
      # ... auto-generated — do not edit
    my-app: # your package name — any name except "app-management"
      actions:
        handle-order-placed:
          function: actions/handle-order-placed/index.js # relative to src/commerce-extensibility-1/
          web: "no"
          runtime: nodejs:24
          annotations:
            require-adobe-auth: false

The <package>/<action> format in runtimeActions maps directly: my-app/handle-order-placed → package my-app, action handle-order-placed.

Handler skeleton

Event handlers receive a CloudEvents-shaped payload. The event data lives in params.data.

// src/commerce-extensibility-1/actions/handle-order-placed/index.ts
export async function main(params: Record<string, unknown>) {
  const data = params.data as Record<string, unknown>;
  // data contains the fields declared in the event's `fields` array
  // (or the full payload if fields is empty)

  const orderId = data["order_id"];

  // process the event ...

  return { statusCode: 200, body: { processed: true } };
}

Step 4 — Validate

Build the project to confirm the updated config is valid:

aio app build

A build failure with a validation error points directly to the offending config field.

Common Issues

• External event has `fields`: The fields property is only valid on Commerce events; external events don't support it.
• `runtimeActions` format error: Must be <package>/<action>. Both parts are lowercase alphanumeric + hyphens only.
• `app-management` package name conflict: The framework generates this package in ext.config.yaml on every build. Use any other name for your own actions.
• Function path is relative to `src/commerce-extensibility-1/`: Do not use src/... or project-root-relative paths. actions/handle-order-placed/index.js resolves correctly; src/commerce-extensibility-1/actions/handle-order-placed/index.js does not.
• `defineConfig` not found: Ensure @adobe/aio-commerce-lib-app is installed and defineConfig is imported from @adobe/aio-commerce-lib-app/config.
• Build fails on missing action: A runtime action referenced in runtimeActions must exist in the project. Check the action files under src/commerce-extensibility-1/actions/ and create any missing stubs.

Quality Bar

• aio app build completes without errors

Chaining

After aio app build passes:

• Add webhook interception — invoke commerce-app-webhooks to intercept Commerce operations
• Add merchant settings — invoke commerce-app-business-config to expose configurable settings in Commerce Admin

References

• assets/eventing-config.ts — Reference config showing both Commerce and external event source shapes