INVOICE PROCESSING
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.
How it runs
The automated pipeline, trigger to output.
- TriggerVendor invoice email arrives in FrontFront
- ActionExtract vendor, number, date, total with OpenAIOpenAI
- ActionArchive original PDF to S3 with normalized keyAWS S3
- LogicCheck Airtable ledger for vendor + number matchAirtable
- ActionInsert ledger row when invoice is newAirtable
- OutputAlert AP on Slack when a duplicate is foundSlack
What it does
Guards against paying the same invoice twice. For every vendor invoice arriving in Front, it extracts the vendor and invoice number, checks whether that combination has been seen before, stores the original PDF in S3 for audit, and raises a Slack alert the moment a duplicate appears.
When to use it
Use it when vendors resend invoices, forward to multiple inboxes, or AP fears double payments. It also gives you a tamper-evident archive of every original document keyed by vendor and invoice number.
How it works
- 1A vendor invoice email arrives in Front and triggers the flow.
- 2OpenAI extracts the vendor name, invoice number, date, and total.
- 3The PDF attachment is uploaded to S3 under a normalized key like vendor/invoice-number.pdf.
- 4A logic step queries the Airtable invoice ledger for an existing vendor plus invoice-number match.
- 5If new, a ledger row is created; if a duplicate, the flow skips ledger insert and posts a duplicate warning with both S3 links to the AP Slack channel.
Set it up
What you configure once, before turning it on.
- 1Connect FrontShared inbox, conversations.
- 2Connect OpenAIModels, embeddings, files.
- 3Connect AWS S3Buckets, objects, signed URLs.
- 4Connect AirtableBases, tables, views, automations.
- 5Connect SlackChannels, DMs, threads, mentions.
- 6Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 7Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 8Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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Three-way match Front invoices against purchase orders in Postgres
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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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