Turn LennoxPros into an API

What you can build on LennoxPros

• Get order status

  Build this

  Reads an order under My Account > My Orders with Check Status, then each item in Line Items with its shipment stage and tracking.

  Takes

  PO or order number, or a date range

  Returns

  Order number, PO number, order date, line items, shipment stage, tracking number, estimated delivery date

• Check availability by catalog number

  Build this

  Opens the product page for each catalog number and reads the availability it shows for nearby warehouses.

  Takes

  Catalog numbers

  Returns

  Catalog number, description, availability by warehouse

• Get warranty claim status

  Build this

  Reads the Status Report on the Warranty Tools page: the warranty claims your company has filed and where each one stands.

  Takes

  Claimed since (optional)

  Returns

  Claim, status, and each other column on the Status Report

• Place a parts order with Quick Order

  Build this

  Adds catalog numbers and quantities with Quick Order, sets the PO number and shipping or Pick Up in Store, and places the order from Review Order.

  Takes

  Catalog numbers and quantities, PO number, shipping method or store, payment method

  Returns

  Order number, PO number, line items

Automate LennoxPros 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 tracking numbers on open orders, to dispatch

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the order status of every order placed in the last 14 days.

  Step 2

  Keep the line items whose shipment stage or tracking number changed since the last run.

  Step 3

  Post each one, with PO number, catalog number and estimated delivery date, to your dispatch webhook.

• Availability check for upcoming installs

  Build this

  Starts

  Every weekday at 6:00

  Step 1

  Check availability for each catalog number on your install list.

  Step 2

  Keep the items that show no availability at the nearby warehouses.

  Step 3

  Email you the list with each item's catalog number and description.

• Warranty claim status changes, every Monday

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Get the warranty claim Status Report for claims filed in the last 90 days.

  Step 2

  Keep the claims whose status changed since the last run.

  Step 3

  Post them to your service software's webhook and email you a summary.

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 order status” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "www.lennoxpros.com/get_order_status",
    "input": {
      "po_number": "ACME-4471"
    }
  }'

{
  "status": "completed",
  "data": {
    "order_number": "60318842",
    "po_number": "ACME-4471",
    "order_date": "2026-11-09",
    "line_items": [
      {
        "catalog_number": "X0000",
        "quantity": 2,
        "shipment_stage": "Shipped",
        "tracking_number": "1Z999AA10123456784",
        "estimated_delivery": "2026-11-13"
      }
    ]
  }
}

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.

LennoxPros’s own options

Lennox's Website Product API feeds Lennox product and promotion content to your company website. Invoice Quick Pay lets you view, pay and download invoices, and its Easy Import creates an invoice data file for accounting systems. The help centre describes no API for orders, availability or warranty claims.

Read on November 12, 2026: Website Product API, eDocument Delivery FAQs, Ordering FAQs.

Signing in to LennoxPros

LennoxPros signs you in on its Access Lennox page with your email address and password. With Fous you sign in once through that page with your own account: the login is sealed with AES-256, never returned by the API, and an expired session is signed back in.

Worth knowing

Order Status depends on your permissions

If you cannot see Order Status under My Orders, your company's LennoxPros Admin has to update your permissions. A method sees only what the account it signs in with can see.

Claims take up to 5 business days

Lennox's 2019 warranty quick reference guide says claims can take up to 5 business days to review, and failed parts required for return go back within 45 days of the claim date.

Payments post by 4 p.m. CST

In Invoice Quick Pay, payments made before 4 p.m. CST are processed and shown the same day. Later payments, or ones on a non-business day, are processed the next business day.

Some parts are claimed as accessories

Warranty claims for parts 27A02 or 27A03 are filed as an accessory, with the model and serial number of the furnace or air handler in the notes section.

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