Pull CVS invoices, payments and deductions into your systems

What you can build on the AP Vendor Portal

• Get invoices for a date range

  Build this

  Reads the Invoices tab for an Invoice Date (From) and Invoice Date (To) range, with each invoice's amount and whether it is Paid or Open.

  Takes

  Invoice date from, invoice date to

  Returns

  Invoice number, document date, amount, status, deduction or not

• Get payments with their deductions

  Build this

  Reads the Payments section and opens each Document Number to list the Vendor Invoices and Vendor Credit Memos that make up the payment.

  Takes

  Payment date from, payment date to

  Returns

  Document number, payment date, payment amount, lines with document type, invoice number, amount

• Check dispute status

  Build this

  Reads your disputes in the Vendor Dispute Management Dashboard with their status and the invoice lines they cover.

  Takes

  Status (optional)

  Returns

  Dispute number, dispute type, dispute subtype, debit memo reference number, disputed amount, status

• Initiate a dispute for a deduction

  Build this

  In the Vendor Dispute Management Dashboard, presses Initiate Dispute, fills the invoice lines, attaches the signed POD, adds a message and presses Validate.

  Takes

  Remit and PO vendor, dispute type and subtype, debit memo reference, PO number, amount, invoice date, freight term, POD

  Returns

  Dispute number, status, debit memo reference number, disputed amount

Automate the AP Vendor 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 deductions, every morning

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the invoices dated in the last 30 days from the Invoices tab.

  Step 2

  Keep the invoice numbers ending in V, W or X that were not there on the last run.

  Step 3

  Email you the list with invoice number, document date, amount and status.

• Payments and Vendor Credit Memos to accounting

  Build this

  Starts

  Every weekday at 18:00

  Step 1

  Get the payments made since yesterday, with the lines under each Document Number.

  Step 2

  Stop when there are none.

  Step 3

  Post each payment and its Vendor Invoice and Vendor Credit Memo lines to your ERP webhook.

• Dispute status changes, weekly

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Read your disputes in the Vendor Dispute Management Dashboard.

  Step 2

  Keep the disputes whose status changed since the last run.

  Step 3

  Email you each one with its dispute type, debit memo reference number, disputed amount and new status.

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 invoices for a date range” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "apvendorportal.cvshealth.com/get_invoices",
    "input": {
      "invoice_date_from": "2026-10-01",
      "invoice_date_to": "2026-11-11"
    }
  }'

{
  "status": "completed",
  "data": {
    "invoices": [
      {
        "invoice_number": "4471902",
        "document_date": "2026-10-14",
        "amount": 18240,
        "status": "Paid",
        "deduction": false
      }
    ],
    "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.

The AP Vendor Portal’s own options

CVS exchanges orders, invoices and remittance with merchandise suppliers by EDI, and the documents it publishes for suppliers describe no API for the AP Vendor Portal. The portal is where you view invoice and payment status, download remittance as an Excel spreadsheet and raise disputes for deductions.

Read on November 12, 2026: CVS EDI Frequently Asked Questions, CVS General Supplier Policy, CVS Electronic Data Interchange documents.

Signing in to the AP Vendor Portal

The AP Vendor Portal signs you in with your email address, your password and a passcode from the SAP Authenticator app at every login. Each user has their own account, linked to one authenticator. With Fous you sign in through the portal's own sign-in with your own account, and the login is sealed with AES-256: code and AI agents never see it.

Worth knowing

Deductions end in V, W or X

A deduction shows up as an invoice number with a V, W or X suffix, and under a payment as a Vendor Credit Memo. While your balance with CVS is negative, deductions stay Open in the Invoices tab and do not appear in Payments.

A missing invoice is an EDI question first

When an invoice does not appear in the portal, CVS asks you to check that your 997 came back with A for accepted and whether you received an 824 rejection notice.

Up to 500 lines per dispute

One dispute form takes up to 500 invoice lines, each with a CVS PO number, disputed amount, invoice date and freight term. CVS may charge a processing fee for a dispute where the POD is signed short and the deduction is valid.

Lockouts last one hour

Three wrong passwords lock the account and five wrong passcodes lock the passcode, each for one hour. One account links to only one SAP Authenticator app, desktop or mobile.

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Other industries: Tesco Partners Toolkit, TD SYNNEX ECExpress, Frontdoor Contractor Portal, OpenInvoice, a3innuva, Yelp for Business.