Get your Cummins delivery schedules through an API

What you can build on the Supplier Portal

• Get delivery schedules

  Build this

  Reads the Delivery Schedule Inbox in Cummins' IBM WebForms and each schedule's quantities: what can be shipped now and what is forecast only.

  Takes

  Purchase order number (optional), product number (optional)

  Returns

  Delivery schedule, PO number, product number, Ship To, Immediate/Past Due Qty, Firm Qty, Planning/Forecast Qty, dates

• Check rejected ASNs and invoices

  Build this

  Reads the ASN Errors and Invoice Errors folders, where Cummins moves documents it rejected, so you can correct and resubmit them.

  Takes

  Nothing

  Returns

  Document type, document number, Shipment ID, delivery schedule, PO number, date

• List ASNs in the ASN Sent folder

  Build this

  Reads the ASN Sent folder, which holds the ASNs you have sent Cummins and the only ones an invoice can be created from.

  Takes

  Sent since (optional)

  Returns

  Shipment ID, delivery schedule, PO number, Ship To, items, quantity, UOM, sent date

• Create an ASN from a delivery schedule

  Build this

  Opens a schedule in the Delivery Schedule Inbox, selects Create ASN, picks the Ship To and items, fills the shipping, line and package details and sends it.

  Takes

  Delivery schedule, Ship To, items and quantities, Shipment ID, shipping details, country of origin, serial numbers

  Returns

  Shipment ID, delivery schedule, items, quantities, status

Automate the Supplier Portal 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 and changed Cummins delivery schedules, each morning

  Build this

  Starts

  Every weekday at 6:00

  Step 1

  Get the delivery schedules in the Delivery Schedule Inbox.

  Step 2

  Keep the schedules that are new or changed since the last run.

  Step 3

  Email you their Immediate/Past Due Qty and Firm Qty by product number and Ship To.

• Rejected ASNs and invoices, posted to your team

  Build this

  Starts

  Every weekday at 8:00

  Step 1

  Check the ASN Errors and Invoice Errors folders.

  Step 2

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

  Step 3

  Post each one, with its number, delivery schedule and PO number, to your Slack or ERP webhook.

• New sent ASNs, handed to accounting for invoicing

  Build this

  Starts

  Every weekday at 17:00

  Step 1

  List the ASNs in the ASN Sent folder.

  Step 2

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

  Step 3

  Post Shipment ID, PO number, items and quantities to your accounting system's 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 delivery schedules” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "webforms.b2b.ibmcloud.com/get_delivery_schedules",
    "input": {
      "purchase_order": "5500182",
      "product_number": null
    }
  }'

{
  "status": "completed",
  "data": {
    "schedules": [
      {
        "delivery_schedule": "DS-20431",
        "purchase_order": "5500182",
        "product_number": "4321987",
        "ship_to": "Acme Engine Plant, Dock 7",
        "immediate_past_due_qty": 120,
        "firm_qty": 800,
        "planning_forecast_qty": 1200,
        "uom": "EA",
        "next_firm_date": "2026-11-20",
        "horizon_end": "2027-03-26"
      }
    ]
  }
}

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 Supplier Portal’s own options

The Supplier Portal is Cummins' site for suppliers, with a secure side that links to Cummins' business applications. Cummins requires its suppliers to use EDI in its EDIFACT formats. Suppliers without their own EDI work in IBM WebForms, which Cummins documents for delivery schedules, ASNs and invoices. Indirect suppliers receive POs and send invoices on Ariba Network.

Read on November 12, 2026: EDI B2B, IBM WebForms training for Cummins.pdf), Supplier Portal identity verification.

Signing in to the Supplier Portal

Since May 11, 2026 the Supplier Portal's secure side signs suppliers in through Salesforce Identity and Access Management with a password, once your Cummins contact approves access. IBM WebForms takes a username and password. You sign in once through the site's own sign-in with your own account; the login is sealed with AES-256, code and AI agents never see it, and an expired session is signed back in.

Worth knowing

Only Immediate and Firm quantities ship

On a delivery schedule you can ship only the Immediate/Past Due Qty and the Firm Qty. Planning/Forecast Qty is for information only and cannot be shipped.

One ASN per receiving location

The Ship To is joined with the receiving location, so items for different receiving locations on one delivery schedule go on separate ASNs.

Invoices come from a sent ASN

An invoice can only be created from an ASN in the ASN Sent folder. Create Invoice without a matching EDI PO is not in use.

Engine items need serial numbers

For engine shipments each item needs at least one Serial # on the ASN. Every ASN also needs a Country of Origin and a Shipment ID #.

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