Pull your LMP2P invoices and payments into your systems

What you can build on LMP2P

• List open purchase orders

  Build this

  Reads List Open Purchase Orders in the Activity Center of the LM eInvoicing Application: the POs you can still invoice and their lines.

  Takes

  PO number (optional)

  Returns

  PO number, line number, description, quantity, value, ERS-only flag, remaining amount

• Check invoice status

  Build this

  Finds an invoice with Advanced Search in the LM eInvoicing Application and reads its status and its scheduled to pay date.

  Takes

  Invoice number or PO number

  Returns

  Invoice number, PO number, status, received date, scheduled to pay date, amount

• Get paid invoices for a date range

  Build this

  Reads the Paid invoices report from the Home page of the LM eInvoicing Application for the dates you give, with the remittance details of each payment.

  Takes

  From date, to date

  Returns

  Pay ID, payment date, invoice or reference number, PO number, invoice amount, adjustment amount, amount paid

• Create an invoice from an open PO

  Build this

  Opens a PO in List Open Purchase Orders, selects Create Invoice, edits and saves the lines, attaches a PDF and submits the invoice or leaves it in Draft.

  Takes

  PO number, invoice number, invoice date, lines with quantity and value, PDF attachment, submit or draft

  Returns

  Invoice number, PO number, status, total

Automate LMP2P 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.

• Invoice statuses after the overnight update

  Build this

  Starts

  Every weekday at 8:00 Eastern Time

  Step 1

  For each invoice number in your list, check its status and scheduled to pay date.

  Step 2

  Keep the invoices whose status changed since the last run, Rejected first.

  Step 3

  Email you the list with invoice number, PO number, status, amount and scheduled to pay date.

• Yesterday's payments, posted to your accounting system

  Build this

  Starts

  Every weekday at 9:00 Eastern Time

  Step 1

  Get the Paid invoices report for yesterday's date.

  Step 2

  Stop when it has no payments.

  Step 3

  Post pay ID, invoice or reference number, PO number, adjustment amount and amount paid to your ERP webhook.

• New purchase orders ready to invoice

  Build this

  Starts

  Every weekday at 7:00 Eastern Time

  Step 1

  List the open purchase orders in the LM eInvoicing Application.

  Step 2

  Keep the POs that were not there on the last run, and leave out lines marked ERS-only.

  Step 3

  Email you each new PO with its lines, quantities and values.

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 “List open 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": "portal.exostar.com/list_open_purchase_orders",
    "input": {
      "po_number": null
    }
  }'

{
  "status": "completed",
  "data": {
    "purchase_orders": [
      {
        "po_number": "7300418265",
        "lines": [
          {
            "line": 1,
            "description": "Bracket, machined, aluminum 6061",
            "quantity": 120,
            "value": 8640,
            "ers_only": false,
            "remaining": 4320
          }
        ]
      }
    ],
    "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.

LMP2P’s own options

Lockheed Martin's electronic invoicing runs in the LM eInvoicing Application, built by Direct Commerce and opened from Exostar, at no cost to suppliers. Direct Commerce offers automatic invoice file transfer over FTP and HTTPS to suppliers that send more than 50 invoices a month. Reading purchase orders, invoice statuses and payments is done in the application or through its reports.

Read on November 12, 2026: LM eInvoicing supplier FAQ, LMP2P Accounts Payable supplier FAQs.

Signing in to LMP2P

LMP2P is reached through Exostar's Managed Access Gateway: your email address or user ID, then your credential, with two-step verification before the LM eInvoicing Application opens. Company credentials and badges or certificates are also accepted. With Fous you sign in once through Exostar's own sign-in with your own account, and the login is sealed with AES-256 and never returned by the API or written to logs.

Worth knowing

3 pm Eastern cut-off, statuses change overnight

Invoices submitted after 3 pm EST are picked up the next business day, and invoice statuses update overnight. Purchase orders in the application are also updated every evening, so a morning run sees the newest data.

Never invoice ERS lines

Lines marked ERS-only belong to ERS orders, and invoices should never be submitted against them. ERS invoice numbers are typically 10 digits starting with 52.

A submitted invoice cannot be changed

Only drafts can be edited. To undo a wrong invoice you open a ticket asking Lockheed Martin to reject it, and the funds return to the PO, typically the next business day.

No emails for payments or submissions

Lockheed Martin sends no payment notifications and no email when an invoice is submitted. You see it in the application: the status moves from Draft to Received, and payments appear in the Paid invoices report.

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