INVOICE PROCESSING
Block draft invoice send when Postgres event count diverges from Stripe meter
On Stripe's invoice.created webhook, recounts the customer's billable events in your Postgres ledger for the period and, if it disagrees with the metered quantity beyond…
How it runs
The automated pipeline, trigger to output.
- TriggerStripe invoice.created webhook firesStripe
- ActionRead invoice period and metered quantitiesStripe
- ActionCount billable events in Postgres ledger for periodPostgres
- LogicCompute variance; exit if within tolerance
- ActionPause invoice for manual review in StripeStripe
- OutputAlert billing team in Slack with both countsSlack
What it does
This is an event-driven gate that intercepts each draft invoice the moment Stripe creates it. It treats your application's own Postgres event ledger as the source of truth, recounts billable events for the invoice's period, and compares against what Stripe metered. A material gap pauses that single invoice rather than the whole batch.
When to use it
Use it when invoices finalize automatically and you want a per-invoice circuit breaker — catching a specific customer's mis-meter without delaying everyone else. Best when your billable events are already persisted in Postgres alongside the Stripe customer ID.
How it works
- 1Stripe's `invoice.created` webhook triggers the workflow for one draft invoice.
- 2Read the invoice's customer, period start/end, and metered line quantities.
- 3Query Postgres for the count of billable events for that customer within the exact period window.
- 4Logic step computes percent variance; if within tolerance, the workflow exits and lets Stripe finalize.
- 5If the variance exceeds threshold, call Stripe to mark the invoice for manual review (prevent auto-advance) and post a Slack alert with both counts and the customer link.
Set it up
What you configure once, before turning it on.
- 1Connect StripeCustomers, subscriptions, payments.
- 2Connect PostgresAny Postgres URL — query, write, migrate.
- 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
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AI agent that investigates suspected duplicate invoices
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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.
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.
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.
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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