# Get your GM remittance advices through an API

> Read your remittance advices in GEPARA-STP and the users and service packages behind your GM SupplyPower access with one API call each. A workflow can post each weekday's settled payments to accounting and send you a monthly user audit.

Page: https://fous.com/automate/gm-supplypower
Updated: 2026-11-12

Works with your own GM SupplyPower account. Fous is an independent product.

## What you can build on GM SupplyPower

### Get remittance advices

Opens GEPARA-STP from Collaborate › Applications and reads the remittance advices for your remit-to DUNS settled in a date range.

- Takes: Remit-to DUNS, settled from, settled to
- Returns: Payment number, originating trace number, settlement date, payment amount, currency, GM business unit

### List the GM applications your login can open

Reads the Applications list under Collaborate in GM SupplyPower: the GM applications your login is entitled to launch.

- Takes: Nothing
- Returns: Application name, link

### List users and their service packages

Reads, in Core Secure Access, each user in your company and the service packages assigned on the Service packages tab, such as GM SupplyPower and GEPARA-STP.

- Takes: Name or user ID (optional)
- Returns: User name, user ID, service package, subpackages

### Assign GEPARA-STP to a user

In Core Secure Access, opens a user's Service packages tab, uses Assign Package next to GM SupplyPower, checks GEPARA-STP and confirms on Assign subpackage.

- Takes: User ID
- Returns: User ID, service package, subpackage, confirmation message

## Automate GM SupplyPower 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.

### Settled GM payments, posted to accounting

Starts: Every weekday at 8:00

1. Get the remittance advices for each remit-to DUNS you name, settled since the last run.
2. Stop when there are none.
3. Post payment number, trace number, settlement date, amount and business unit to your accounting system's webhook.

### Monthly user audit of GM SupplyPower access

Starts: Monthly on the 1st at 9:00

1. List every user in Core Secure Access with their service packages.
2. Mark the users whose service packages changed since the last run, and group everyone by service package with an AI step.
3. Email you the audit: changes first, then who holds GM SupplyPower and GEPARA-STP.

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 remittance advices” 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": "gmsupplypower.covisint.com/get_remittance_advices",
    "input": {
      "remit_to_duns": "100000001",
      "settled_from": "2026-11-02",
      "settled_to": "2026-11-06"
    }
  }'
```

Example response:

```
{
  "status": "completed",
  "data": {
    "remit_to_duns": "100000001",
    "remittances": [
      {
        "payment_number": "PMT-0048213",
        "originating_trace_number": "000000120004821",
        "settlement_date": "2026-11-03",
        "payment_amount": 48250,
        "currency": "USD",
        "gm_business_unit": "GM North America"
      }
    ],
    "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.

## GM SupplyPower’s own options

GM SupplyPower is the portal where GM suppliers reach GM applications, communications, purchasing information and financial services. Remittance advices are viewed online in GEPARA-STP, one of those applications. GM's public SupplyPower help and onboarding material describes no API for suppliers.

| Option | What it covers | What it takes |
| --- | --- | --- |
| GEPARA-STP | Your remittance advices, viewed online inside GM SupplyPower. | The GEPARA-STP service package on your login and a setup request in the application, which can take up to 2 business days. |
| Core Secure Access | The OpenText Supplier Portal's admin console: users, invitations and service packages such as GM SupplyPower and GEPARA-STP. | Your company's Security Administrator. |
| GM SupplyPower by hand | Collaborate › Applications and the GM applications behind it, such as GEPARA-STP, eSAP, eContract, SQMS and CLIPS. | An approved company and a user login invited by your Security Administrator. |

Read on November 12, 2026: [GM SupplyPower and GEPARA-STP onboarding guide](https://support.portal.covisint.com/assets/supportportal/documents-guest/GEPARA/GEPARA_Onboarding_Guide.docx), [GMSP - GEPARA STP Onboarding Guide (OpenText Support Portal)](https://support.portal.covisint.com/supportportal/Knowledge+Base.page?contentId=mv3fl6ye), [GM SupplyPower help](https://gmsupplypower.covisint.com/gmsp_en_US/Help-Information.page).

## Signing in to GM SupplyPower

Suppliers sign in on GM SupplyPower's Supplier Login page with their OpenText Supplier Portal (formerly Covisint) user ID, and GM asks for 2-Step authentication when you launch a GM application. With Fous you sign in through GM SupplyPower's own sign-in with your own account: the login is sealed with AES-256, never returned by the API, and code and AI agents never see it.

## Worth knowing

- **The service package alone shows no remittances**: After GEPARA-STP is assigned, you still submit a setup request inside GEPARA-STP with your GMID or GMIN, remit-to DUNS and one received payment. Setup can take up to 2 business days.
- **Users are invited, not self-registered**: GM requires your Security Administrator to invite each new user. A GM Service Administrator reviews company-level access to GM SupplyPower against GM's supplier criteria.
- **A DUNS change can remove access**: GM SupplyPower's help answers why access to eSAP, eContract, SQMS and CLIPS is lost when your Ultimate DUNS changes. A DUNS change can also affect indirect material (eSAP) purchase orders.
- **Two-step check on GM applications**: Launching a GM application such as GEPARA-STP prompts for 2-Step authentication. Problems with it go to the GM Service Desk, not the OpenText help desk.

## 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)
- [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)
- [TWX-21](https://fous.com/automate/twx-21.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: [Collins Aerospace Customer Portal](/automate/collins-aerospace-customer-portal), [Rightmove Plus](/automate/rightmove-plus), [Bushel](/automate/bushel), [Target Partners Online](/automate/target-partners-online), [Coles Supplier Portal](/automate/coles-supplier-portal), [Verizon My Business](/automate/verizon-my-business).

## Frequently asked questions

### Does GM SupplyPower have an API?

Not one that GM documents publicly for suppliers. GM SupplyPower is a portal: you sign in and open GM applications from Collaborate › Applications, such as GEPARA-STP for remittance advices. With Fous you can build a method that reads those screens with your own login and returns JSON.

### How do I see my GM remittance advices?

In GEPARA-STP, launched from Collaborate › Applications in GM SupplyPower. Your Security Administrator assigns the GEPARA-STP service package, then you submit a setup request in GEPARA-STP with your remit-to DUNS and one received payment. Setup can take up to 2 business days.

### Who gives a new user access to GM SupplyPower?

Your company's Security Administrator. They invite the user and assign service packages in Core Secure Access. If your company is new, a GM Service Administrator first approves the company's access.

### Who answers questions about a GM payment?

GM's Accounts Payable Helpdesk, whose regional contacts are in the Accounts Payable FAQ on GM SupplyPower. The GEPARA-STP help desk handles setup and navigation of the application, and the OpenText help desk handles logins and registration.

### Is Fous affiliated with General Motors?

No. Fous is an independent product. You use it with your own GM SupplyPower login, and a method reads and does only what that login can.

Fous is an independent product: it is not affiliated with, endorsed by or sponsored by the operator of GM SupplyPower (General Motors, on the OpenText Supplier Portal (formerly Covisint)). 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.