Test Action feature for Integrations

Overview

A live testing capability available on every external-app action step inside the Workflow Builder. Builders can now validate inputs, execute the action as a real call against the connected app, inspect both the exact payload sent and the raw provider response, and have the response schema automatically populate output fields available to subsequent steps.

Test Action closes the gap between configuration time and runtime.

What’s New

A Test Action button on every external-app action step
Click Test Action from the action configuration card to launch the test flow. The button is available on every external-app action.

Live Test execution

The action runs against the connected app as a real API call, using the resolved input values from the builder
Workflow variables, custom values, and transformations are applied exactly as they would be at runtime
The connection used is the same Connected Account the action will use when the workflow runs
Side-by-side Data In and Data Out panes
Data In — the resolved inputs that will be sent to the provider, after variable interpolation and any transformations.
Data Out — the raw JSON response from the provider. Large payloads are scrollable and key fields surface as inline chips and cards above the expandable JSON.

How It Works

Configure the action normally — pick the integration, choose the action (e.g. Find Contact in Klaviyo), and map the inputs.
If the action uses custom values produced by previous steps in the workflow, the builder requires those upstream values to be resolvable before Test Action can run. The Test button is enabled only when all referenced custom values can be supplied.
Click Test Action. The Test Drawer slides in from the right with a progress state.
The live call runs. On success, Data In and Data Out populate the drawer; key fields surface as chips and cards above the expandable JSON.
Review the response.