Data Action POST 422 on nested array payload via Express middleware

NICE CXone API & Integrations
1


Data Action POST 422 on nested array payload

The Express middleware is trying to push a batch of contact attributes via the Data Action API, but the endpoint keeps rejecting the body with a 422 Unprocessable Entity. GC version is sitting at 2024.3.189.2. The JWT validation passes clean, and the scope includes data-actions:write.

Payload structure looks standard. Nested objects work fine on simple calls. It’s the moment an array of strings hits the values field that the API chokes. Logs show the request leaves the server without issue. Retries don’t help.

Environment:

  • Node 20.11.0
  • Express 4.18.2
  • Genesys Cloud 2024.3.189.2
  • Axios 1.6.2
await axios.post(`${baseUrl}/api/v2/dataactions/actions`, {
 actionId: 'action_12345',
 contactId: 'contact_67890',
 input: {
 tags: ['vip', 'callback-req'] // This breaks it
 }
}, { headers: { 'Authorization': `Bearer ${token}` } });

Response body:

{
 "message": "The request body contains invalid parameters",
 "code": "bad.request",
 "status": 422,
 "details": "Property 'tags' is not a supported input for action_12345"
}

Schema docs are silent on this.

2

Check the attributes object in your payload. It needs to be a flat key-value map, not an array of objects.

"attributes": {
 "crmId": "12345",
 "segment": "vip"
}

Sending an array there breaks the schema validation.

3

Spot on. Switched to a flat object and the 422 vanished immediately.