INVOICE PROCESSING
Detect Recurring-Invoice Amount Drift on Fixed Vendors
For vendors billed the same amount each cycle, compares each new invoice against the established baseline and raises a Linear issue when the charged amount drifts beyond…
How it runs
The automated pipeline, trigger to output.
- TriggerNew recurring invoice record lands in PostgresPostgres
- ActionLoad vendor's recent amount baselinePostgres
- LogicCompute delta and gate on tolerance threshold
- OutputOpen a Linear issue for the price-drift reviewLinear
What it does
Tracks recurring vendors that bill a fixed or near-fixed amount and watches for unexpected changes. When a new invoice's amount drifts beyond your tolerance versus the vendor's recent baseline, it opens a Linear issue with the vendor, old amount, new amount, and percentage change — so a quiet 8% SaaS hike or a fat-fingered charge gets contested before it is paid.
When to use it
Use it when amount stability matters more than timing: subscriptions, fixed retainers, and flat-rate services where a changing number is the real signal you care about.
How it works
- 1A new recurring invoice record landing in Postgres triggers the flow.
- 2Load the vendor's recent invoice baseline from Postgres.
- 3Compute the delta and percentage change against the baseline.
- 4Branch: continue only when drift exceeds the configured tolerance.
- 5Create a Linear issue tagged to AP with the vendor, baseline, new amount, and delta for review.
Set it up
What you configure once, before turning it on.
- 1Connect PostgresAny Postgres URL — query, write, migrate.
- 2Connect LinearIssues, projects, cycles, triage.
- 3Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 4Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 5Test, 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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