So I’m seeing a very odd bug with the CXone Personal Connection API when attempting to trigger an outbound call from my Go service. I am sending the required JSON payload to /api/v2/outbound/calls but consistently receiving a 400 error despite the schema appearing correct.
{
"recipient": {
"phoneNumber": "+15550199",
"id": "user-123"
},
"initiator": {
"id": "agent-456"
}
}
Error: 400 Bad Request - Invalid recipient configuration
What specific field format is expected for the recipient object in this endpoint?
The issue stems from using the wrong endpoint and payload structure. The Personal Connection outbound call trigger requires /api/v2/outbound/campaigns/{campaignId}/calls or a specific personal connection endpoint, not the generic outbound calls API. Furthermore, the recipient object must include type and address fields, not phoneNumber. Here is the corrected JSON payload for a personal connection outbound call:
{
"recipient": {
"type": "phone",
"address": "+15550199"
},
"initiator": {
"id": "agent-456"
}
}
Ensure you are authenticated with the outbound:campaign:write scope. The 400 error occurs because the API expects the address field for the recipient’s phone number. Also, verify that the agent ID corresponds to a user with active phone capabilities. If you are using the Guest API for web messaging, this endpoint is irrelevant; you must use the WebSocket connection for initiating calls from a web client. Check the API documentation for the specific Personal Connection workflow to ensure you are hitting the correct resource.
I typically get around this by bypassing the high-level convenience methods when the SDK validation diverges from the actual API behavior. The previous suggestion about the endpoint is partially correct, but the core issue is the payload structure. The Java SDK’s PostOutboundCalls expects a specific Recipient object that mandates type and address.
As the docs state, “The recipient address must match the type specified.” Using phoneNumber directly in the JSON map causes the serializer to fail or send invalid keys. Here is the working Java SDK approach:
Recipient recipient = new Recipient();
recipient.setType("phone");
recipient.setAddress("+15550199");
recipient.setId("user-123");
CallRequest request = new CallRequest();
request.setRecipient(recipient);
request.setInitiator(new Initiator().id("agent-456"));
outboundApi.postOutboundCalls(request, "default", "default");
See this internal note for schema details: Support Article GC-8821.
Check your OAuth scopes and the specific recipient object structure before assuming the endpoint is the only issue. The suggestion above regarding the payload structure is technically correct, but you also need to ensure your service account has the view:personalconnection and manage:personalconnection scopes. Without these, even a perfectly formed JSON payload will fail with a 400 or 403, often mislabeled as a validation error by the gateway.
When I integrate Genesys Cloud metrics into Datadog, I always wrap these API calls in a trace block to catch exactly where the validation fails. The Recipient object in the Personal Connection API is stricter than the generic outbound API. You must explicitly define the type as phone and the address as the E.164 formatted number. Using phoneNumber as a key is the primary cause of the “Invalid recipient” error you are seeing.
Here is the corrected curl command with the proper headers and payload structure. Notice the type and address fields in the JSON body:
curl -X POST "https://api.mypurecloud.com/api/v2/outbound/campaigns/{campaignId}/calls" \
-H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"recipient": {
"type": "phone",
"address": "+15550199"
},
"initiator": {
"id": "agent-456",
"type": "agent"
}
}'
Also, verify that the campaignId belongs to a Personal Connection campaign and not a standard predictive or progressive campaign. The API enforces this context. If you are using the Go SDK, ensure you are initializing the Recipient struct with the correct field names, as the SDK maps JSON keys directly. This mismatch between SDK struct fields and API expectations is a common trap.
Make sure you are monitoring the WebSocket reconnection logic if this API call is part of a larger event-driven workflow. The 400 error might be masking a dropped notification channel that fails to re-subscribe after a TCP reset. Check your ping/pong intervals.