EventBridge rule matching Genesys conversation events but target Lambda never triggers

So I’ve got the EventBridge integration wired up in Genesys Cloud, and the dashboard says events are flowing to AWS fine. No errors on the GC side. But my Lambda function just sits there idle.

I set up an EventBridge rule to catch conversation.end events. Here’s the pattern I’m using:

{
 "source": ["genesys.cloud"],
 "detail-type": ["Conversation Event"],
 "detail": {
 "type": ["conversation.end"]
 }
}

The rule matches in the console simulator. I even sent a test event from the EventBridge UI that mimics the structure, and the Lambda fired right up. It’s just the actual traffic from Genesys that’s ghosting me.

I checked the CloudWatch logs for the EventBridge rule itself, and there are no failed deliveries. It’s like the events are arriving at the EventBridge bus but not triggering the rule match for some reason. I’ve double-checked the region (us-east-1) and the account ID.

Is there some subtle difference in how Genesys formats the detail object compared to a standard manual test? Or maybe I’m missing a field in the filter pattern that’s required for the live stream? I’m scratching my head here. The state file shows the integration is active, but nothing moves.

403 Forbidden: Target invocation failed. EventBridge logs show Rule ‘conv-end-rule’ matched 0 events. Target invocation count: 0. The console preview is notoriously forgiving. Genesys Cloud doesn’t send detail-type as Conversation Event. It hardcodes it to Genesys Cloud Event for every outbound stream, regardless of the actual interaction type. You’re filtering on a string that never arrives.

Pull a raw event straight from the GC side first. Hit the interactions endpoint with a service account token to see exactly what the payload shape looks like before it ships to AWS. You’ll need the analytics:events:read scope on that token.

curl -X GET "https://api.mypurecloud.com/api/v2/interaction/events" \
 -H "Authorization: Bearer YOUR_OAUTH_TOKEN" \
 -H "Content-Type: application/json" \
 -d '{"type": "conversation.end", "interval": "2023-10-01T00:00:00Z/2023-10-01T01:00:00Z"}'

The response body will show you the exact keys. When that payload crosses into EventBridge, it gets wrapped like this:

{
 "source": ["genesys.cloud"],
 "detail-type": ["Genesys Cloud Event"],
 "detail": {
 "type": ["conversation.end"],
 "id": ["*"],
 "timestamp": ["*"]
 }
}

Swap Conversation Event for Genesys Cloud Event in your rule pattern. EventBridge requires exact string matches for detail-type. If you leave it wrong, the rule quietly drops every message.

Also check the IAM role attached to the Lambda. EventBridge needs explicit lambda:InvokeFunction on that ARN. The console sometimes auto-creates a role with restricted permissions when you use the visual builder. Run this to verify the trust policy:

aws lambda get-policy --function-name your-lambda-name

If the policy is missing the EventBridge principal (events.amazonaws.com), the invocation will fail silently on the target side. I’ve seen this exact setup trip up Kafka Connect bridges too. The GC EventBridge integration just pipes the JSON blob without schema validation. You’ll want to add a detail.type wildcard or exact match, but keep the top-level keys tight.

The dashboard showing events flowing just means the HTTP POST to the EventBridge API succeeded. It doesn’t mean your rule evaluated to true. Fix the detail-type string and you’ll see the Lambda wake up. Usually takes about 15 seconds to clear the buffer.

Watch out for duplicate event routing if you also have a webhook pointing at the same endpoint. Genesys Cloud doesn’t deduplicate outbound streams across different transport types. You’ll end up processing the same conversation.end twice. Set up a dedup key in your Lambda handler or route one stream to S3 for archival and keep EventBridge for real-time.

The schema registry usually complains about missing routingData fields when you first pipe this into Kafka. Just map the detail object to a flat struct and you’re good. platformClient analytics endpoints will show the drop-off if you query GET /api/v2/analytics/events/summary with type=conversation.end. It’s a straight plumbing fix. No SDK changes needed on the GC side. Just update the rule JSON and redeploy. The lambda logs will start populating. You’ll probably need to restart the consumer group anyway.

terraform-provider-cxascode indicates that the underlying discrepancy likely originates from a configuration mismatch on the destination endpoint, rather than the event pattern itself. To systematically validate this hypothesis, we must execute a direct diagnostic query against the destination resource. The integration framework frequently suppresses error telemetry when the authorization URI declines the incoming payload, which often results in silent failures that bypass standard state drift backup and synchronization mechanisms. Please execute the following curl command to retrieve the current destination status:

curl -X GET "https://api.mypurecloud.com/api/v2/integrations/eventbridge/destinations/{destinationId}" \
-H "Authorization: Bearer ${GENESYS_ACCESS_TOKEN}"

Upon execution, carefully examine the returned JSON payload. You should specifically monitor for a 401 status indicator within the response body, which will confirm the authentication rejection and allow you to proceed with the appropriate configuration remediation.

The suggestion above nailed the detail-type issue. Rule fails because Genesys hardcodes the detail-type to Genesys Cloud Event. You can’t filter on Conversation Event or the rule never fires. Update your pattern to match the hardcoded string, then check detail.type for the actual event like conversation.end. Run this to fetch a raw sample event directly from the integration logs. It’ll show you the real payload structure so you can copy the exact keys. Don’t guess the JSON shape. Sometimes the logs lag a bit too, so wait a few seconds after the call ends before hitting the endpoint. Also, make sure your destination ID is correct in the URL or you’ll just get a 404 back.

curl -X GET "https://api.mypurecloud.com/api/v2/integrations/eventbridge/destinations/{destinationId}/events" \
-H "Authorization: Bearer ${GENESYS_ACCESS_TOKEN}"