Turn the GE Aerospace Supplier Portal into an API

What you can build on the ISP

• Get purchase orders

  Build this

  Reads the purchase orders on the Orders tab of the iSupplier Portal, and opens one PO's details when you give its number.

  Takes

  PO number (optional)

  Returns

  PO number, order date, description, status, amount, currency, lines

• Check invoice statuses

  Build this

  Searches View Invoices on the Finance tab by invoice number, or with % for all invoices, and reads each invoice's status.

  Takes

  Invoice number or %, PO number (optional)

  Returns

  Invoice number, invoice date, PO number, amount, currency, status, payment status

• Get payments

  Build this

  Searches View Payments on the Finance tab and reads which invoices GE Aerospace has paid, when and for how much.

  Takes

  Invoice number or %, paid since (optional)

  Returns

  Payment number, payment date, amount, currency, invoice numbers paid

• Submit a standard invoice against a PO

  Build this

  On the Finance tab, creates an invoice from a PO: selects the PO line, enters invoice number, quantity and taxes, attaches the PDF and submits it.

  Takes

  PO number, PO line, invoice number, quantity, taxes, invoice PDF

  Returns

  Invoice number, PO number, amount, confirmation shown

Automate the ISP with a workflow

A workflow 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 GE Aerospace purchase orders, every morning

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the purchase orders on the Orders tab.

  Step 2

  Keep the POs that were not there on the last run.

  Step 3

  Email you each new PO with its order date, description, lines and amount.

• Weekly list of unpaid GE Aerospace invoices

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Check invoice statuses in View Invoices with % for all invoices.

  Step 2

  Keep the invoices that are not yet paid.

  Step 3

  Group them by status and email you the list with PO number, amount and invoice date.

• GE Aerospace payments, posted to your accounting system

  Build this

  Starts

  Every weekday at 18:00

  Step 1

  Get the payments in View Payments made since yesterday.

  Step 2

  Stop when there are none.

  Step 3

  Post payment number, date, amount and the invoices paid to your accounting 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, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get purchase orders” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "isp-supplier.apps.geaerospace.com/get_purchase_orders",
    "input": {
      "po_number": "4500918273"
    }
  }'

{
  "status": "completed",
  "data": {
    "orders": [
      {
        "po_number": "4500918273",
        "order_date": "2026-11-09",
        "description": "Machined bracket, Inconel 718",
        "status": "Open",
        "amount": 18420,
        "currency": "USD",
        "lines": [
          {
            "line": 1,
            "item": "Bracket, machined, per drawing rev C",
            "quantity": 60,
            "unit_price": 287,
            "amount": 17220
          }
        ]
      }
    ],
    "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.

The ISP’s own options

GE Aerospace publishes no supplier API on its Supplier Portal. Suppliers use the Internet Supplier Portal (ISP) in the browser for order inquiry, order acknowledgement, invoicing and payment information. A separate Invoice Lookup tool shows an invoice's status by PO or invoice number without registration.

Read on November 12, 2026: GE Aerospace Supplier Portal, iSupplier resources and training, Supplier Invoice Search.

Signing in to the ISP

The ISP asks for your GE Aerospace B2B SSO ID and password. You register with your company email, confirm a verification link and wait for a GE sponsor to approve the account; password resets use a security code sent by email. With Fous you sign in once through the ISP's own sign-in with your own account: the login is sealed with AES-256, and an expired session is signed back in.

Worth knowing

Use the account ending in _AVI

Switch User, from the Home icon, changes the account you work under. GE Aerospace work is under the account ending in _AVI, in the GE iSupplier Portal Full Access folder.

The % sign does the searching

In View Invoices and View Payments, % in the number field lists everything. When you create an invoice, an IMPACT PO number, which has letters in it, needs a % at the end.

ERS invoices are created by GE

On ERS, GE creates the invoice itself from your packing slip. These invoices appear as ERS-packing slip number, so a method that submits invoices should skip those POs.

What an invoice must not carry

The invoice description must not include a government end customer or program details. Tooling suppliers send the final GT166 to their buyer before payment can start.

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