---
title: "Starts a picked standalone transfer (\"Mark as In Transit\")."
method: POST
path: "/api/v1/transfers/{id}/start"
tags: ["Transfers"]
---

# Starts a picked standalone transfer ("Mark as In Transit").

`POST /api/v1/transfers/{id}/start`

## Request

- Base URL: `https://app.flexonthejob.com`
- URL: `https://app.flexonthejob.com/api/v1/transfers/{id}/start`
- Auth: HTTP bearer

Requires `ManageTransfers` and an `Idempotency-Key` header; no body. The transfer
must be a standalone transfer, `Pending`, not awaiting approval, and every line fully
picked (`POST /api/v1/transfers/{id}/pick`). The transfer and its lines become
`InTransit` and its units are flagged in transit until it is completed or failed.

## Path parameters

- `id` integer, required

## Response `200`

Transfer id and confirmation message (`Transfer is in transit.`).

- ApiOperationResponse: Body of a successful workflow-style write that has no richer resource to return (assign, start, complete, void…). Id is the affected resource's id; Warning carries a non-fatal note from the service (e.g. an email that could not be sent).
  - `id` integer: Id of the resource the operation acted on (e.g. the job id).
  - `message` string, nullable: Human-readable confirmation from the service (e.g. "Job started."). May be null.
  - `warning` string, nullable: Non-fatal problem encountered while completing the operation (e.g. a notification email that could not be sent). Null when there was none.

## Other responses

- `400`: Missing `Idempotency-Key`.
- `401`: Unauthorized
- `403`: Forbidden
- `404`: No such transfer in this organization.
- `409`: A job-site or sales-order transfer, awaiting approval, not `Pending`, lines not fully picked (detail names them), or the key's creator is unknown on this server.
- `429`: Too Many Requests
- `500`: The change could not be saved. Retry with the same `Idempotency-Key`.

---

[API](https://skmtc.dev/flexonthejob/apis/flex-api.md) · [All operations](https://skmtc.dev/flexonthejob/apis/flex-api/llms.txt) · [OpenAPI document](https://skmtc.dev/flexonthejob/apis/flex-api/revisions/19c8f4d27acf?raw)