Pull your Dealertrack DMS accounting into your own systems

What you can build on Dealertrack DMS

• Get vendor payment totals

  Build this

  Reads your Vendor Analysis report under General Ledger, Audit Reporting, Vendor Reporting for the year you pick: the amount paid to each vendor.

  Takes

  Year, vendor name (optional)

  Returns

  Vendor number, vendor name, total paid

• Get the vendor list

  Build this

  Reads the vendor screen under General Ledger, Vendors: every vendor set up in your store's books.

  Takes

  Nothing

  Returns

  Vendor number, vendor name, address, phone, contact

• Get aged schedule detail

  Build this

  Reads the aged detail of one scheduled account, item by item by control number, from the general ledger's schedule reports.

  Takes

  Account number, as-of date (optional)

  Returns

  Control number, name, document date, document number, amount, age in days

• Get general ledger detail

  Build this

  Reads the on-screen general ledger detail for one account and date range, with each line's document number and source.

  Takes

  Account number, from date, to date

  Returns

  Date, document number, control number, description, debit, credit, balance

Automate Dealertrack DMS 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.

• Send last month's vendor payments to accounting

  Build this

  Starts

  Monthly on the 1st at 8:00

  Step 1

  Get vendor payment totals reads the Vendor Analysis report for the current year.

  Step 2

  A comparison with the last run keeps the change in each vendor's total paid since last month.

  Step 3

  An AI step groups the vendors by amount paid and notes new vendors.

  Step 4

  The summary is emailed to you and posted as JSON to your accounting system's webhook.

• Check aged schedules every weekday

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  For each scheduled account you list, Get aged schedule detail reads its open items.

  Step 2

  A filter keeps the items older than the number of days you set.

  Step 3

  A comparison with the last run marks the items that were not there yesterday.

  Step 4

  The new items are emailed to you and posted to your team's Slack through a webhook.

• Add new vendors to your payables system

  Build this

  Starts

  Every weekday at 18:00

  Step 1

  Get the vendor list reads the vendor screen under General Ledger.

  Step 2

  A comparison with the last run keeps vendors that are new or whose address changed.

  Step 3

  Those vendors are posted as JSON to your payables 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 vendor payment totals” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "www.dealertrackdms.app.coxautoinc.com/get_vendor_payment_totals",
    "input": {
      "year": 2026,
      "vendor_name": null
    }
  }'

{
  "status": "completed",
  "data": {
    "year": 2026,
    "vendors": [
      {
        "vendor_number": "V10422",
        "vendor_name": "Acme Auto Parts Supply",
        "total_paid": 84215.6
      },
      {
        "vendor_number": "V10587",
        "vendor_name": "Northwind Detailing Services",
        "total_paid": 19870
      },
      {
        "vendor_number": "V11030",
        "vendor_name": "Globex Tire Distribution",
        "total_paid": 41392.25
      }
    ]
  }
}

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.

Dealertrack DMS’s own options

Cox Automotive presents Opentrack as the Dealertrack DMS platform for third-party integration, through which dealers choose vendors that connect to their DMS. Its public pages list those vendors' integrations but do not say how a dealer gets direct access or what it costs. The Cox Automotive Integration Platform publishes APIs for other Cox products.

Read on November 12, 2026: Dealertrack DMS for Independent Dealers (brochure), Dealertrack integrations, Cox Automotive Integration Platform.

Signing in to Dealertrack DMS

Dealertrack DMS is a web application reached through its own login page, and Cox Automotive's DMS knowledge base sits behind a Dealertrack login too. With Fous, you sign in through that page with your own account. The login is sealed with AES-256, never returned by the API, and your code and AI agents never see it. A method reads only what your account can.

Worth knowing

Printed lists can go to an email address

On the vendor screen, Print opens a list of options with an Output Type. One output asks for an email address and sends the list there instead of showing it.

Vendor Analysis needs a report set up

Vendor Analysis works from reports you create with Add, a description and a year. Set up the year's report by hand before a method reads it.

Schedules are kept by control number

Asset and liability accounts are scheduled by control number, with aged and non-aged detail and summary reports. Name the account and the report you want in your request.

Ledger lines lead back to source documents

General ledger detail drills down by document number to the source document. Parts invoices, purchase orders, checks, receipts and repair orders can be reprinted singly, by date range or by quantity.

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