Data Action returning 200 but variables stay null in Architect?

Architect & Flows
1

Hey folks,

I’ve got a Data Action set up to hit an internal REST endpoint for fetching user preferences. The HTTP call works fine-I see a 200 OK in the logs-but the mapped variables in Architect come back empty every time.

Here’s the mapping config I’m using in the Data Action JSON:

{
 "url": "https://internal-api.example.com/v1/user/preferences",
 "method": "GET",
 "headers": {
 "Authorization": "Bearer {{oauth_token}}"
 },
 "responseMapping": {
 "theme": ".data.user.theme",
 "fontSize": ".data.ui.fontSize"
 }
}

The actual JSON response from the API looks like this:

{
 "status": "success",
 "data": {
 "user": {
 "theme": "dark",
 "id": 12345
 },
 "ui": {
 "fontSize": "large"
 }
 }
}

I’ve checked the path syntax and it seems right. I even tried logging the raw response in a debug action and it shows the full payload. Just the mapped vars are null.

Is there something tricky about nested object paths in the response mapping? Or maybe I’m missing a step to flatten the response first?

Any ideas on why the mapping isn’t picking up .data.user.theme?