---
title: "List of source fields"
method: POST
path: "/destinations/meta_conversions/actions/sourceFields"
tags: ["destinations.meta_conversions"]
---

# List of source fields

`POST /destinations/meta_conversions/actions/sourceFields`

## Request

- Base URL: `https://headless.dataddo.com/customer-api/v1`
- URL: `https://headless.dataddo.com/customer-api/v1/destinations/meta_conversions/actions/sourceFields`
- Auth: none declared

## Request body

- PostFlowPreviewInput
  - `sources` string[], nullable: List of sources to be used (legacy blending preview).
  - `flow_definition` union: FlowDefinition: exactly one of SqlQueryFlow, UnionFlow, or DirectSourceFlow.
    - SqlQueryFlow
      - `query` string
      - `sources` SqlSourceMappingInput[]
        - `sourceId` string
        - `tableName` string
        - `columns` SqlColumnMappingInput[]
          - `columnId` string
          - `columnName` string
    - UnionFlow
      - `sources` UnionSourceInput[]
        - `sourceId` string
        - `columnOrder` string[]: Optional per-source column order. If empty, inherits the source's natural column order.
    - DirectSourceFlow
      - `sourceId` string
      - `columnOrder` string[]: Optional per-flow column order. If empty, inherits the source's natural column order.
  - `flowId` string, nullable: Optional ID of an existing flow to associate this preview with. The previewed definition always comes from `flow_definition`.

## Response `200`

List of source fields

- object[]
  - `label` string
  - `value` string
  - `type` string

---

[API](https://skmtc.dev/dataddo/apis/dataddo-headless-beta-api.md) · [All operations](https://skmtc.dev/dataddo/apis/dataddo-headless-beta-api/llms.txt) · [OpenAPI document](https://skmtc.dev/dataddo/apis/dataddo-headless-beta-api/revisions/dcfa2345bd10?raw)