INVOICE PROCESSING
Subscription Line-Item Drift Guard
When a billing webhook reports a subscription invoice, it checks each line item against the agreed quantity and unit price in HubSpot.
How it runs
The automated pipeline, trigger to output.
- TriggerBilling webhook posts invoiceHTTP webhook
- ActionLoad contracted line items from HubSpotHubSpot
- LogicDiff each line: qty and unit price
- ActionWrite checks to Postgres audit ledgerPostgres
- OutputAlert Discord on unauthorized lineDiscord
What it does
Goes deeper than a single total: it inspects every line item on a recurring invoice. Triggered by an inbound billing webhook, it matches each line's quantity and unit price against the deal terms recorded in HubSpot, writes a row to a Postgres audit ledger for every check, and raises a Discord alert whenever a line was added, repriced, or quantity-inflated outside the agreement.
When to use it
Use it for usage-based or seat-based subscriptions where the total can look fine while individual lines creep. Good for teams that need an immutable audit trail of what was billed versus what was contracted.
How it works
- 1A billing platform posts an invoice payload to the HTTP webhook.
- 2The flow loads the vendor's contracted line items from HubSpot.
- 3A logic step diffs each billed line against contracted quantity and unit price.
- 4Every comparison is written to the Postgres audit ledger.
- 5Any unauthorized or repriced line triggers a Discord alert naming the exact line and delta.
Set it up
What you configure once, before turning it on.
- 1Connect HTTP webhookTrigger any URL on agent actions.
- 2Connect HubSpotCRM, deals, marketing, support.
- 3Connect PostgresAny Postgres URL — query, write, migrate.
- 4Connect DiscordCommunity channels + voice + bots.
- 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
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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