Download invoices from vendor portals
Produce a verified invoice bundle with account, period, and duplicate checks.
Before the first run
- An authorized portal account and explicit supplier scope
- Requested invoice period and an approved storage location
- A list of previously accepted invoice identifiers
Define what the agent can do.
Read-only navigation and authorized document download. Payment controls, billing changes, and acceptance of new terms are outside the workflow.
The implementation sequence
- 01
Verify the session
Open the approved portal and confirm the active account and organization. Hand off authentication challenges; do not continue from an uncertain tenant context.
- 02
Locate the period
Navigate to invoice history and apply the requested date or billing-period filter. Record whether the portal uses issue date, service period, or payment date.
- 03
Collect the document
Download the requested invoice and preserve its portal identifier. Check that the response is an actual document rather than an error page or login screen.
- 04
Validate and deduplicate
Compare supplier, invoice identifier, amount currency, and period with the request. Use a document hash and invoice key to identify repeats without silently discarding conflicting versions.
- 05
Store a receipt
Save accepted files in the approved location and record source account, retrieval time, and validation state. Send mismatches to review with the source reference.
Stop for human approval
Approve the portal access and storage destination before collection. Review ambiguous or conflicting documents before they enter downstream accounting.
Approval design principles →Implementation options
Playwright
Deterministic browser automation and testing across Chromium, Firefox, and WebKit.
Verified Sep 27, 2026Browser infrastructureBrowserbase
Managed browser sessions with observability, proxies, and computer-use integrations.
Verified Sep 27, 2026Agent & orchestrationBrowser Use
An open-source browser agent library with managed agents and cloud browser sessions.
Verified Sep 27, 2026Agent & orchestrationSkyvern
Vision-assisted browser workflows with a developer SDK and a visual workflow builder.
Verified Sep 27, 2026Failure & recovery
- Wrong billing period selected
- Duplicate or revised invoice
- Session expires during download
- File saved before transfer completes
What drives cost
- Portal count
- Authentication frequency
- Documents and pagination per period
Related use cases
Sources & verification
Reviewed Sep 27, 2026. Architecture recommendations are editorial analysis; linked vendor documentation supports the underlying capability and safety facts.
- developers.openai.com/api/docs/guides/tools-computer-use
- playwright.dev/docs/locators
- playwright.dev/docs/auth