# Workflow event - Workflow trigger | Docs - nodulz

Source: https://nodulz.com/docs/nodes/workflow_event

Language: en

Receives a call from another nodulz workflow (Call workflow action)

## Usage and specifics

This entry point receives Call Workflow requests. Publish the target workflow and use its trigger identifier.

Technical type : `workflow_event`. Runtime : `nodulz`.

## Credentials and prerequisites

This node defines no dedicated external credential. Remote sources or execution targets may still need their own access credentials.

See the [credentials guide](/docs/credentials) if a remote source or execution target requires access.

## Parameters

Names below are technical keys. Defaults are not a ready-to-run configuration: complete fields required by your operation. Paths containing [] describe list items; some fields depend on the selected mode.

| Parameter | Type | Default | Values / limits |
| --- | --- | --- | --- |
| `testPayload` | `string` | `""` | - |

## Configuration help

| Setting | Purpose and guidance |
| --- | --- |
| `testPayload`<br>Test payload | JSON injected as payload when manually testing this trigger. Example: JSON object - downstream use {{ nodes.<triggerKey>.payload }}. |

## Examples

- Example: JSON object - downstream use {{ nodes.<triggerKey>.payload }}.
- Copy this id into the caller workflow or pick it from the Call workflow node list.

## Initial configuration

Initial catalog configuration example, to adapt before running. Keep secrets in credentials.

```json
{
  "testPayload": ""
}
```

## Verification

Test with representative data. Check node output in the inspector and logs, then use editor mapping for downstream fields. A trigger test with a simulated payload does not validate external service delivery.

See also : [Expressions and data](/docs/expressions), [Executions](/docs/executions), [Node catalog](/docs/nodes).

## Explore further

- [Features - nodulz](https://nodulz.com/product/overview)
- [Node catalog - nodulz](https://nodulz.com/product/catalog)
- [MCP server - nodulz](https://nodulz.com/product/mcp)
- [Pricing - nodulz](https://nodulz.com/pricing)
- [Use cases and workflow automation - nodulz](https://nodulz.com/use-cases)
- [Choose what your workflows can do. - nodulz](https://nodulz.com/compare)
- [Documentation - nodulz](https://nodulz.com/docs)