INVOICE PROCESSING

Pre-Screen Emailed Invoices for Duplicates (Outlook)

Reads invoices arriving in a shared Outlook inbox, extracts vendor and amount, and checks them against Snowflake history so re-sent or resubmitted bills are caught at intake…

CategoryInvoice Processing
Enginesim
Difficultyintermediate
Triggerevent
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerNew invoice email in shared AP inboxOutlook
  • ActionExtract vendor, amount, invoice numberOpenAI
  • ActionLook up matching invoice in ledgerSnowflakeSnowflake
  • LogicBranch duplicate vs first-seen by confidence
  • OutputTag email and surface prior recordOutlook

What it does

Vendors love to re-send invoices: a reminder copy, a corrected PDF, a forward from a second contact. This workflow watches a shared Outlook AP inbox, extracts the vendor, amount, and invoice number from each attachment, and checks that fingerprint against your Snowflake AP ledger. If the same invoice was already received or paid, it tags the email and warns the team before anyone keys it into the ERP.

When to use it

Use it when invoices arrive primarily by email to a shared mailbox and duplicates creep in as reminder copies or multi-recipient forwards. It stops the duplicate at the front door rather than relying on a downstream three-way match.

How it works

  1. 1A new message in the AP Outlook inbox triggers the workflow.
  2. 2An extraction step parses vendor, amount, and invoice number from the body and attachment.
  3. 3The workflow queries Snowflake for any prior invoice matching that fingerprint.
  4. 4A logic branch decides duplicate versus first-seen based on match confidence.
  5. 5On a duplicate, it categorizes the Outlook message and posts the prior record so the clerk can archive the re-send.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect OutlookMail, calendar, contacts.
  2. 2
    Connect SnowflakeWarehouses, queries, shares.
  3. 3
    Connect OpenAIModels, embeddings, files.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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