The Start Integration Workflow action is available on Send Message Task, Task, and User Task nodes within BPMN processes.
Overview
The Start Integration Workflow action allows a BPMN process to trigger an integration workflow, send input data, and receive the workflow output into process data through a Receive Message Task. This enables processes to delegate data fetching, transformations, and external system integrations to lightweight workflows without creating subprocesses.How it works
When a Start Integration Workflow action is triggered:1
Input data is sent
The input data mapped in the action configuration is sent as start variables to the workflow.
2
Workflow executes
The integration workflow runs with the provided inputs, executing its configured nodes (REST calls, data transformations, AI operations, etc.).
3
Output is captured
Workflow output data is captured in the process instance upon completion, at the Key name configured on the Receive Message Task’s data stream topic.
4
Process continues
The BPMN process continues to the next node after the workflow completes.
Configuration
Selecting a workflow
In the Integration mapping section, the workflow dropdown (Search workflow by name) displays:- All workflows within the current app version
- Any workflows referenced in the app (e.g., via the Library)
Input mapping
In the Message field, map process variables to workflow input parameters:Receiving output
To capture workflow output in your process:- Add a Receive Message Task node after the node with the Start Integration Workflow action
- In its Data stream topics section, set the Key name where the workflow output lands in the process instance data
- Subsequent nodes can access the output data at that key
When to use
Related resources
Passing data between nodes
How node outputs land in process variables and how downstream nodes read them
Integration Designer
Build and configure integration workflows
UI Flows - Start Workflow
Trigger workflows from UI Flows without BPMN processes
Message Events
Learn about Send and Receive Message Task nodes
Actions Overview
Explore all available action types