# Get your TWX-21 orders and forecasts through an API

> Build API calls that read the 注文残高一覧 (order backlog list), forecasts and delivery delay alerts in TWX-21. A workflow can read the backlog each weekday morning and email you the orders added since the last run, by buyer.

Page: https://fous.com/automate/twx-21
Updated: 2026-11-12

Works with your own TWX-21 account. Fous is an independent product.

## What you can build on TWX-21

### Get the order backlog

Reads the 注文残高一覧 (order backlog list) for the buyer you name: each open order with its item, quantity and delivery dates.

- Takes: Buyer, item (optional)
- Returns: Order number, item, quantity, requested delivery date, replied delivery date, open quantity

### Read an item's forecast and delivery plan

Reads the 所要注残受払画面 (requirements, backlog and receipts screen) for one item: the buyer's 所要計画 (requirement plan), order backlog, your replies, arrivals and stock by date.

- Takes: Buyer, item
- Returns: Date, requirement plan quantity, order backlog, replied delivery quantity, arrivals, stock, stage

### Check delivery delay alerts

Reads the delivery delay and stock shortage or excess alerts that the supply and demand adjustment service shows on screen for the buyer you name.

- Takes: Buyer
- Returns: Alert type, item, order number, requested delivery date, replied delivery date

### Reply with a delivery date

Opens an order or forecast line on the 納期回答画面 (delivery date reply screen), enters your delivery date and quantity, and sends the reply.

- Takes: Buyer, order number or item, delivery date, quantity
- Returns: Order number, item, replied delivery date, quantity, reply status

## Automate TWX-21 with a workflow

A [workflow](/product/workflows) runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

### New orders in the order backlog, every morning

Starts: Every weekday at 7:30 Japan time

1. For each buyer you name, get the order backlog from the 注文残高一覧.
2. Keep the orders that were not there on the last run.
3. Email you the new orders, one section per buyer, with item, quantity and requested delivery date.

### Forecast changes, posted to your planning system

Starts: Every Monday at 8:00 Japan time

1. For each item you name, read the forecast and delivery plan on the 所要注残受払画面.
2. Keep the dates whose requirement plan quantity changed since the last run.
3. Post item, date, old and new quantity and stage to your ERP or planning system's webhook.

### Delivery delay alerts, sent to your team's Slack

Starts: Every weekday at 13:00 Japan time

1. For each buyer you name, check the delivery delay and stock shortage or excess alerts.
2. Stop when there are none.
3. Post each alert, with item, order number and both delivery dates, to your Slack webhook.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

## Once built, one call from your code

Once you have built a [method](/product/methods), it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get the order backlog” would look like.

Example request:

```
curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "portal.twx-21.hitachi.ne.jp/get_order_backlog",
    "input": {
      "buyer": "Acme Manufacturing",
      "item": null
    }
  }'
```

Example response:

```
{
  "status": "completed",
  "data": {
    "buyer": "Acme Manufacturing",
    "orders": [
      {
        "order_number": "PO-260114",
        "item": "BRK-2041 Mounting bracket",
        "quantity": 500,
        "requested_delivery_date": "2026-11-25",
        "replied_delivery_date": null,
        "open_quantity": 500
      }
    ],
    "count": 1
  }
}
```

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

## TWX-21’s own options

Hitachi describes TWX-21's EDI as a cloud service that buyers set up for their suppliers, who work in it through the browser. For companies that exchange EDI files, Hitachi's data exchange service converts between protocols and formats. No API for suppliers is described on the service pages, and prices are not listed there.

| Option | What it covers | What it takes |
| --- | --- | --- |
| Customizable data exchange service | EDI file exchange with trading partners over different protocols and formats, through one interface; Hitachi converts for each partner. | Arranged with Hitachi, which runs the service. No prices are listed on the service page. |
| Supply and demand adjustment service | Forecasts, order backlog, delivery date replies, arrivals and stock shared between buyer and supplier, with alerts on screen and by email. | The same user ID as for Web-EDI, on the same portal. |
| TWX-21 by hand | Orders, delivery date replies, delivery slips and tags printed as PDF, and CSV downloads. | A TWX-21 Login ID and password. |

Read on November 12, 2026: [Customizable data exchange service](https://www.twx-21.hitachi.ne.jp/contents/service/customizable/index.html), [Supply and demand adjustment service](https://www.twx-21.hitachi.ne.jp/contents/service/supply/index.html), [Web-EDI/BB setup for Microsoft Edge](https://www.twx-21.hitachi.ne.jp/Web_EDI_BB/KankyoSetting_Edge.pdf).

## Signing in to TWX-21

TWX-21 PORTAL signs you in with a Login ID and a password of 8 to 32 characters with letters and numbers. When a regular ID forgets its password, the company's administrator issues it a one-time password. With Fous you sign in once through TWX-21's own sign-in with your own Login ID: the login is sealed with AES-256, and an expired session is signed back in.

## Worth knowing

- **Each buyer sets its own screens**: Hitachi lets each company set the items and data fields shown on its screens. The same list can show different columns for two buyers, so check the fields a method returns for each buyer you add.
- **Forecasts come in three stages**: You can reply with a delivery plan at three stages: 所要計画 (requirement plan), 予約注文 (provisional order) and 確定注文 (firm order). Keep the stage with each quantity you read.
- **One tab per browser at sign-in**: Hitachi notes that signing in to the Portal with several tabs open in the same browser can end in an error, and asks you to close every window and sign in again.
- **Slips and tags print as PDF**: Delivery slips and tags (納品書・荷札) print as PDF, and lists download as CSV files. A pop-up blocker can stop CSV downloads, so the Web-EDI/BB setup guide asks you to allow pop-ups for twx-21.hitachi.ne.jp and twx-21.com.

## More in Manufacturing: OEM supplier portals

- [Exostar](https://fous.com/automate/exostar.md)
- [RTX Supply Chain Platform](https://fous.com/automate/rtx-supply-chain-platform.md)
- [GE Aerospace Supplier Portal](https://fous.com/automate/ge-aerospace-supplier-portal.md)
- [Net-Inspect](https://fous.com/automate/net-inspect.md)
- [SupplyOn](https://fous.com/automate/supplyon.md)
- [IMDS](https://fous.com/automate/imds.md)
- [Covisint Supplier Portal](https://fous.com/automate/covisint-supplier-portal.md)
- [BMW Group Partner Portal](https://fous.com/automate/bmw-group-partner-portal.md)
- [eSupplierConnect](https://fous.com/automate/esupplierconnect.md)
- [GM SupplyPower](https://fous.com/automate/gm-supplypower.md)
- [Mercedes-Benz Supplier Portal](https://fous.com/automate/mercedes-benz-supplier-portal.md)
- [ONE.Konzern Business Plattform](https://fous.com/automate/one-konzern-business-plattform.md)
- [Lockheed Martin Procure to Pay](https://fous.com/automate/lockheed-martin-procure-to-pay.md)
- [Cummins Supplier Portal](https://fous.com/automate/cummins-supplier-portal.md)
- [Daimler Truck Supplier Portal](https://fous.com/automate/daimler-truck-supplier-portal.md)
- [Volvo Group Supplier Portal](https://fous.com/automate/volvo-group-supplier-portal.md)

Other industries: [ABS MyFreedom](/automate/abs-myfreedom), [PropertyMe](/automate/propertyme), [myCHEP](/automate/mychep), [Syndigo CXH](/automate/syndigo-cxh), [Woolworths Partner Hub](/automate/woolworths-partner-hub), [AT&T Premier](/automate/at-and-t-premier).

## Frequently asked questions

### Does TWX-21 have an API?

Not for suppliers, as far as Hitachi's service pages say. Suppliers work in Web-EDI through the browser. Companies that exchange EDI files can use Hitachi's customizable data exchange service, which Hitachi runs and which converts between protocols and formats for each trading partner.

### Can I reply to forecasts in TWX-21, or only to firm orders?

You can reply to forecasts too, where the buyer uses the supply and demand adjustment service. A delivery plan can be answered at three stages, 所要計画, 予約注文 and 確定注文, on the 納期回答画面, and your replies show on the 所要注残受払画面.

### I forgot my TWX-21 password. Who resets it?

Your company's administrator issues a one-time password for a regular ID. If your email address is registered, you can also use the password reset request on the sign-in page. An administrator who forgets the password contacts the TWX-21 help desk.

### Is Fous affiliated with Hitachi?

No. Fous is an independent product. You use it with your own TWX-21 Login ID, and a method reads and does only what that ID can.

Fous is an independent product: it is not affiliated with, endorsed by or sponsored by the operator of TWX-21 (Hitachi). The name is used only to say which system this page is about. Something here wrong or out of date? Write to legal@fous.com.