INVOICE PROCESSING
Flag recurring-vendor invoices that exceed their historical baseline
When a new vendor invoice lands in Airtable, compares its amount to that vendor's trailing-12-month average in BigQuery and routes any statistically high invoice to a Slack…
How it runs
The automated pipeline, trigger to output.
- TriggerNew invoice row created in AirtableAirtable
- ActionFetch vendor 12-month baseline from BigQueryBigQuery
- LogicCompute z-score; pass if within 2 sigma
- ActionWrite deviation summary back to AirtableAirtable
- OutputPost flagged invoice to AP Slack channelSlack
What it does
Every incoming invoice from a recurring vendor is scored against that vendor's own spending history before it enters the approval queue. Invoices that fall within the normal band pass straight through; invoices that spike are held and surfaced to a human with the exact deviation spelled out.
When to use it
Use this when you pay the same vendors on a regular cadence (rent, SaaS, utilities, retainers) and want to catch a $4,200 bill that should have been $420 before someone clicks approve. Ideal for AP teams that trust the vendor but not the keystrokes.
How it works
- 1A new invoice row is created in Airtable (vendor, amount, period).
- 2The flow queries BigQuery for that vendor's trailing-12-month mean and standard deviation.
- 3A logic step computes the z-score; invoices within 2 sigma are marked Auto-OK and skip ahead.
- 4Outliers get an enriched note (expected vs. actual, percent over) written back to Airtable.
- 5A Slack message posts the flagged invoice to the AP approvals channel with approve/hold context.
Set it up
What you configure once, before turning it on.
- 1Connect AirtableBases, tables, views, automations.
- 2Connect BigQueryDatasets, queries, schemas.
- 3Connect SlackChannels, DMs, threads, mentions.
- 4Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 5Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 6Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
More Invoice Processing workflows
Catch duplicate invoices as they hit your AP inbox
Watches your accounts-payable Gmail inbox for incoming invoice emails, fingerprints each one, and routes likely duplicates to a review label instead of into the approval queue.
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.
Nightly audit that flags duplicate payments already made
Runs every night to scan the last 90 days of Stripe payments against your Postgres invoice ledger.
Block duplicate Stripe payouts before they send
When a new vendor invoice is queued for payment in Stripe, cross-check it against your paid-invoice history in Postgres and halt any payout that matches an already-paid invoice.
Agent that codes Front invoices to GL accounts and drafts a bill
An agent reads each Front vendor invoice, assigns GL account codes per line item using your chart of accounts and past coding history.
Detect duplicate Front invoices and archive originals to S3
Parses each Front vendor invoice, checks it against a history table for duplicates, archives the source PDF to S3 with a normalized key, and alerts AP when a duplicate is caught.
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.
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