INVOICE PROCESSING
Gate invoice approvals on a duplicate cross-check
When an approver clicks Approve in your AP system, a webhook re-validates the invoice against paid history in Postgres and Stripe charges.
How it runs
The automated pipeline, trigger to output.
- TriggerInvoice approval webhook receivedHTTP webhook
- ActionCheck paid history in PostgresPostgres
- ActionQuery matching charges in StripeStripe
- LogicAlready paid in either source?
- OutputReject approval and notify approver in SlackSlack
What it does
Sits at the approval step. The instant someone approves an invoice, this flow does a last-mile check: it confirms the invoice has not already been paid by scanning both the Postgres ledger and recent Stripe charges. If a prior payment exists, it overturns the approval and tells the approver why, so no second payment is ever scheduled.
When to use it
Use this when approvers act fast and may not remember whether a bill was already cleared, especially for recurring vendors. It enforces the duplicate check as a hard gate rather than relying on memory.
How it works
- 1The AP system fires an approval webhook with the invoice ID.
- 2The flow reads the invoice details from the payload.
- 3It checks the Postgres paid-history table for a prior payment.
- 4It also queries Stripe for charges matching the vendor and amount.
- 5A logic branch decides whether either source shows it as paid.
- 6If already paid, the approver is messaged in Slack and the approval is rejected.
Set it up
What you configure once, before turning it on.
- 1Connect HTTP webhookTrigger any URL on agent actions.
- 2Connect PostgresAny Postgres URL — query, write, migrate.
- 3Connect StripeCustomers, subscriptions, payments.
- 4Connect SlackChannels, DMs, threads, mentions.
- 5Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 6Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 7Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
More Invoice Processing workflows
Dollar-Threshold Match Variance Escalation Chain
Routes three-way match variances up an approval ladder by dollar size — small ones to the line manager, large ones to the controller.
Front vendor invoice to Airtable approval packet with line-item parse
Watches a Front inbox for vendor invoice emails, extracts header and line-item data from the body and PDF attachment, and writes a structured.
Three-Way Match Exception Router by Variance Type
When a new invoice fails three-way match against its PO and receiving record, this workflow classifies the mismatch (price, quantity, or missing receipt) and routes each variance…
Route parsed Front invoices to the right Slack approver by amount
Parses an incoming Front vendor invoice and posts an interactive Slack approval card to the approver whose spending threshold matches the invoice total.
Three-way match Front invoices against purchase orders in Postgres
Parses a Front vendor invoice and runs a three-way match against the matching purchase order and receipt records in Postgres, posting pass or exception results to Slack.
Daily AP aging digest from the Front invoice ledger
On a daily schedule, scans the Airtable invoice ledger for unapproved and past-due invoices, summarizes them with OpenAI.
Run it inside a business
This workflow drops into a full company template. Import the org, and this is one of the playbooks its agents run.
Run this workflow in your colony.
14-day trial. No DevOps. No Sales call. Provisioned in under a minute.