Data Action mapping returns undefined despite valid JSON response

Having some config trouble here… I’m trying to map a simple string field from a GET /api/v2/users/{id} response in a Genesys Cloud Data Action. The debug output shows the JSON body is correct, but the success output variable is always undefined. I’ve tried using $.name and $.data.name in the mapping config, but nothing sticks. How do I correctly map the root level fields from the API response in the Data Action JSON mapping?

The issue stems from how the Data Action parser handles the response envelope. The API returns a wrapped object, so you must target the specific path within that structure. You’ll need to adjust your mapping configuration to reference the $.body property explicitly, as the root $ often resolves to the entire HTTP response object rather than the JSON payload.

Here is the corrected mapping structure:

{
 "successMapping": {
 "userFullName": "$.body.name",
 "userId": "$.body.id"
 }
}

Ensure your Data Action configuration includes the responseType set to json. If the mapping still returns undefined, verify that the API call itself isn’t returning a 404 or authentication error, which would bypass the success mapping entirely. You can validate the exact response structure by checking the debug logs for the responseBody field. This approach aligns with the standard behavior for REST API integrations within the platform. See the documentation for further details on response handling: https://developer.nice.com/docs/cxone/studio/data-actions#response-mapping

TL;DR: Check if your token has user:read scope. Data Actions run as the service account, not the user.

Have you tried verifying the OAuth scopes on the service account executing the Data Action? The previous answer assumes the API call succeeds and returns 200 OK. If it returns 403 or 401, the body is empty or null, so $.body.name is definitely undefined.

i’ve seen this exact issue where the mapping looks correct but the underlying request fails silently in the debug view because the token lacks user:read. The Data Action framework doesn’t always bubble up the 4xx error clearly in the success output.

Try adding a conditional check first:

{
 "if": {
 "equals": ["${status}", 200]
 },
 "then": {
 "set": {
 "userName": "${$.body.name}"
 }
 }
}

if status isn’t 200, you’ll know it’s an auth issue, not a mapping one. Also, remember that $.body is only available if the response content-type is application/json. if it’s text/plain, you’ll need to parse it manually.

The documentation actually says you need to check the responseType in your Data Action config. it’s a common trap. the default is usually text, which means $.body is just a string, not an object. that’s why $.body.name fails. you’ll get undefined because you’re trying to access a property on a string.

switch the responseType to json in the action definition. once that’s set, the parser deserializes the payload automatically. then $.body.name works as expected. if you’re still stuck, check the raw response in the debug log. look for the Content-Type header. if it’s not application/json, the parser won’t touch it.

also, ensure your OAuth token has user:read. if the call returns 403, the body is null or an error object, not the user data. i’ve spent hours on this before. the mapping syntax is fine, it’s the type casting that breaks it. don’t forget to verify the division context too if you’re in a multi-tenant setup. sometimes the service account can’t see the user